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Extended Life 10W-40 Synthetic Motor Oil (XLO)
10W-40 Synthetic Motor Oil (XLO)

AMSOIL XL Synthetic Motor Oil is the choice for those who want to do something extra for their vehicle. Its boosted formulation delivers extra cleaning power, outstanding wear control, excellent high and low temperature protection and exceptional fuel economy. XL is engineered for advanced automotive technology, including turbos and direct injection. It is packed with extra engine protection, allowing you to go up to 12,000 miles / 19,000 kms or one year, whichever comes first, between oil changes.

Package sizes include:

1-Quart Bottle
1-Quart Bottles (case of 12)
30-Gallon Drum
55-Gallon Drum

Product Code: XLO • Brand: AMSOIL




MSDS Data Sheet French Data Sheet

Product Details Tech Data Reviews & RatingRelated Videos

Product Applications
Use AMSOIL XL Synthetic Motor Oil in applications that require any of the following specifications:

Product Application Specs

XLO 10W-40 Synthetic Motor Oil

• API SN, SM
• ACEA A3/B3, A3/B4

Product Description
Motorists, business owners and fleet managers benefit from the boosted engine protection of AMSOIL XL Synthetic Motor Oil. Frequent oil changes are expensive, time-consuming and inconvenient. The extra protection built into XL can provide extended drain intervals up to 12,000 miles / 19,000 kms or one year, if you choose, allowing you to change oil on your schedule, reduce maintenance, save money and reduce waste oil.

AMSOIL, the leader in automotive synthetic lubrication, produced the world’s first API-qualified synthetic motor oil in 1972. Trust the extensive experience of AMSOIL, the First in Synthetics®, to do the best job protecting your engine.

Resists Oil Breakdown
XL Synthetic Motor Oil maintains its fluidity (viscosity) under the most extreme conditions. Some oils break down and significantly increase in viscosity after extended periods of high-temperature operation. These changes can cause excessive oil consumption, engine deposits, accelerated wear and difficult cold-starts. The GM Oxidation and Deposit (GMOD) Test consists of a 5.7L V8 engine running at 293°F (100° hotter than normal) for 100 hours. These severe operating conditions test an oils ability to control viscosity increase, deposits and oil consumption. The testing revealed that AMSOIL XL Synthetic Motor Oil provides 64 percent more protection against oil breakdown1 than required by the GM dexos1® Gen 2 specification, ensuring protection in extreme temperatures.

GM Oxidation and Deposit Test Results

Protects Pistons from Low-Speed Pre-Ignition (LSPI)
XL Synthetic Motor Oil features unique chemistry proven to protect your engine against the harmful effects of low-speed pre-ignition (LSPI). LSPI is the spontaneous ignition of the fuel/air mixture prior to spark-triggered ignition. Most new engines feature gasoline direct-inject (GDI), often coupled with a turbocharger. These technologies heighten the possibility of LSPI events, which can destroy pistons and connecting rods. A properly formulated motor oil is critical for protecting your engine against LSPI.

Original equipment manufacturers (OEMs) like GM have addressed the issue by designing tests to determine a motor oil's ability to prevent LSPI. XL Synthetic Motor Oil achieved 100 percent protection against LSPI2 - zero occurrences were recorded throughout five consecutive tests.

Keeps Engines Clean
AMSOIL XL Synthetic Motor Oil is fortified with detergent and dispersant additives. Its boosted additive package effectively raises the total base number (TBN) to neutralize acids and resist sludge, corrosion and carbon deposits. XL provides 25 percent more cleaning power3 to help keep your engine running smoother, longer.

Hot and Cold-Engine Protection
AMSOIL XL Synthetic Motor Oils are multi-viscosity formulations. Compared to conventional oils, they better resist the effects of thermal breakdown, including evaporation and viscosity loss, while remaining fluid in cold temperatures for easier cold starts and fast start-up circulation.

Maximizes Fuel Economy & Maintains Low Emissions
XL Synthetic Motor Oil is licenced by the American Petroleum Institute (API) to meet and exceed the requirements commonly found in owner's manuals. It excels in fuel-economy testing, earning the additional "Resource Conserving" designation4 from the API. XL is also friendly toward modern emissions control systems, promoting proper operation of catalytic converters for optimum service life and low exhaust emissions.

1 Based on independent testing of AMSOIL XL 5W-30 motor oil in the GMOD engine test required for the GM dexos1 Gen2 specification.

2 Based on zero LSPI events in five consecutive tests of AMSOIL XL 5W-30 Motor Oil in the LSPI engine test required by the GM dexos1 Gen 2 specification.

3 vs. AMSOIL OE Motor Oil

4 Applicable to XL 0W-20, 5W-20, 5W-30 and 10W-30 motor oil.

All trademarked names are the property of their respective owners and may be registered marks in some countries. No affiliation or endorsement claim, express or implied, is made by their use.

COMPATIBILITY & MIXING AMSOIL
AMSOIL XL Synthetic Motor Oil is compatible with conventional and other synthetic motor oils. Mixing other oils with AMSOIL motor oils, however, will shorten the oil life expectancy and reduce the performance benefits. AMSOIL does not support extended drain intervals where oils have been mixed.

Aftermarket oil additives are not recommended for use with AMSOIL XL Synthetic Motor Oil.

TECHNICAL SERVICES
For immediate answers to your technical questions call (715) 399-TECH (8324) between 8 a.m. and 5 p.m. Central time or email tech@amsoil.com.

SERVICE LIFE
In gasoline-fueled vehicles, AMSOIL XL Synthetic Motor Oils are recommended for up tp 10,000-mile/six-month oil change intervals or longer when recommended in owner's manuals or indicated by electronic oil life monitoring systems. Change aftermarket, original equipment manufacturer or AMSOIL Ea Oil Filter at every oil change.

HEALTH & SAFETY
This product is not expected to cause health concerns when used for the intended application and according to the recommendations in the Material Safety Data Sheet (MSDS).

Click here to view the MSDS Data Sheet for AMSOIL XLO.

Keep out of the reach of children. Don't pollute. Return used oil to collection centers.

TYPICAL TECHNICAL PROPERTIES
AMSOIL XL 10W-40 SYNTHETIC MOTOR OIL		 10W-40
(XLO)
Kinematic Viscosity @ 100°C, cSt (ASTM D-445) 15.7
Kinematic Viscosity @ 40°C, cSt (ASTM D-445) 103.4
Viscosity Index (ASTM D-2270) 162
CCS Viscosity, cP @ (°C) (ASTM D-5293) 5315 (-25)
Flash Point °C (°F) (ASTM D-92) 238 (460)
Fire Point °C (°F) (ASTM D-92) 258 (496)
Pour Point °C (°F) (ASTM D-97) -44 (-47)
Noack Volatility, % weight loss (g/100g) (ASTM D-5800) 5.1
High Temperature/High Shear Viscosity
@ 150°C and 1.0 X 106 s-1, cP (ASTM D-5481)		 4.4
Total Base Number (ASTM D-2896) 10.0

LSPI Super Knock Prevention

Did this product meet your expectations?

(click on a star to rate)
Product Name: Extended Life 10W-40 Synthetic Motor Oil (XLO)
Current Rating: 4.95 out of 5 stars
Total Votes: 19 vote(s)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Thomas: space

Great

Great oul

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Tim: space

Less oil loss.

My truck has the cam phaser knocking for the last 60-70K miles. I decided to try AMSOIL so I ordered the signature series oil and filter. My truck started using a lot more oil after that. Not sure why. This time I switched to the xl series oil. Now it's not using as much oil. I'm not sure if it's a coincidence or what but I'll stick with the xl oil for now.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Cory: space

yes

Runs really clean in my Hemi

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Big B: space

Top Produce for the older car

Oil works well with older V6

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Chocko: space

Stuff is GOOD

I've been using AMSOIL for years, and will only ever recommend/use AMSOIL products for any and all of my fluid needs.
The oil completely blows my mind. I change the oil every 5k on my '04 Mazda 3, despite Mazda recommending 3k. The oil still comes out clean, this stuff never fails to amaze me.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Frank: space

Great products

I use amsoil in all my vehicles. Confident with the product.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by GreenMachine: space

XL 5-20 oil

Ordering was easy and shipping was fast. Been using amsoil for years and it has protected my engine very well!

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by blackhat: space

great oil

long oil change times

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Uncle Peanut: space

Great oil and very good price

My new every oil change oil

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mike: space

I plan on only buying Amsoil products

Very satisfied with Amsoil. I now use it in my motorcycle, SUV and pickup.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Tim: space

Great product

Best oil out there

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Battery Man: space

Yes I would

Very pleased with the amsoil oil that I use in both of my vehicles, wouldn't go back the other way.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Kridder: space

The Only OIL

I use Amsoil in everything I own.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Peyton: space

A great product

A great product, based on the oil analysis it holds up very well. Definitely buying again.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Fredster: space

I will buy this product again, certainly!!

Engine runs a little smoother and my gas mileage has gone up about .7 mpg..

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by sure fire: space

yes

Best oil ever

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Bjp: space

I won't buy anything else

I have used Amsoil in my vehicles for over 20 years. I have never had mechanical issuerelated to lubrication

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by none: space

2003 dodge ram

I used to use castol oil. then my wife said "why don't you just take it to the quick oil place in town. Well, they changed hands and I did know it. I finally saw what they used in my truck. Looked like coffee. Needless to say I had a friend at work who uses Amsoil and he said to try it. I love the way my truck runs now. I am a customer for life.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by PJ: space

yes

don't know till I use it

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by bayou boogie man: space

Repeat customer

I average about 6,000 miles on each of my vehicles per year. When Amsoil reformulated this oil to go as much as 1 year/12,000 miles between oil changes,I switched from Amsoil's top tier oils to this.Still great engine protection while saving some cash too. Happy customer !

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Crazyjoey: space

Very satisfied

I have been using Amsoil since I bought my 1999 Taurus in 2000 and 19 years later car is still running strong.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Cranky: space

I would buy this product again

Keeps the P2 XC70 running like a top/

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Lc: space

Great oil!

I have an older Nissan and don't necessary need the best, but wanted better, so I went with the XL. Smooth running and my oil consumption has stopped.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Glen: space

Yesin

I use the best amsoil thy sell.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by J. Wayne: space

My oil of choice

I use Amsoil exclusively in all my equipment including my airplane. The company does not always honor its promotions, however, but that doesn't mean thei products aren't the best one can buy.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Chris: space

Good

I have a 4.3L motor in an old Chevy truck. This oil looks clean when I change it once a year. I don't put many miles on the truck.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Roadrunner: space

I've been using AMSOIL 39 years

This oil is great

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Taz: space

I run AMSOIL in everything I own

I have a 1997 Dodge Dakota with 197000 miles on it that I haul a 14 foot trailer with regularly that may not look new but runs like new and a 2011 Dodge Caliber with 215000 miles on it and it runs like new AMSOIL is doing it right.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Nick: space

Great oil

I use this in the engine of my 2017 Jeep jku seems to be great

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Km: space

Amsoil quality performance.

Amsoil is good quality oil goes the long milage just like they say. I have been running Amsoil for years no problems.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by JS: space

Top end damage on a 5.7 hemi

Oil did not prevent cam and lifter damage at 105,000 miles had to have top end replaced by dealer.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jim: space

Best Oil

I drive for Uber and Lyft averaging 1200 miles per week. Also, before retiring, I owned and operated an automotive repair facility for 41 years so I am well aware of how important lubricants are to the vehicle. Don't take my word for it, read the studies that have been performed on Amsoil products. They don't lie!

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by bonehead: space

I have used amsoil for 20+years,it was amzoil then.

no engine failures at all,several of my vehicles are 200k plus.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Snowman: space

Fantastic product. Long commute.

160 mile round trip commute, high mileage car. 10,000 mile change interval. Doesn't let me down.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Todd: space

I'll continue to buy Amsoil

I use Amsoil in both vehicles

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Geary: space

This is a great product.

Have been using this product in my 2005 T Bird since I purchased it new in May 2015. I use AmsOil products in all my vehicles.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by stilup: space

Quality assurance

I have been Amsoil in my Harley for 10 years and now use it in my Subaru,
I use it because it's high ranking protection. That''s what it's all about.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Russ: space

Great oil

Noticed my two Honda's got substantially quieter after changing to amsoil. Less burn off of oil also.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Bigbear: space

Great item

I use in all my cars

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by md: space

Good stuff

Don't use anything else

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Sam: space

I will be buying again

Great all around

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by dv_farmboy: space

Product was a great fit for my use

Using it in my 2007 magnum. Great for my driving habits and mileage.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by BC: space

Fantastic product!

I've been using amsoil in my rotary motor for many years now and it has shown to hold up well to the heat the 13b produces. A recent engine refresh showed now signs of premature oil related wear.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by CDN Tundra: space

Highly recommend

Been using Amsoil in all my vehicles for years and am completely satisfied

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Wayne: space

Great Oil

Good product not any more expensive than other synthetic oils

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mike: space

The last motor oil you will ever buy!!!

I'm a trucker by trade and I was traveling through Pennsylvania when a Amsoil distributor passed me. What caught my eyes was the slogan, "The first in synthetic, the last motor oil you will buy." I got the distributor attention and he pulled into the rest area and to make a long story short, he placed his hand on his engine, I was completely shocked and sold. It is the best.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Ross: space

Great product

Been using Amsoil off and on for a long time. Was using Mobile 1 in our 2012 minivan. Switched over last year, especially since the now make a filter for it. Definitely noticed a difference right away. English ran smoother and quieter.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Twjackie168: space

Excellent oil

I do lots of stop and going here in town with my 2011 F150. Give it a try, you'll see and feel the difference with the performance

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Bassman: space

Perfect for My Purpose

Every spring I use Signature Series in my cars and motorcycles. Before the next spring the cars will need 1 to 2 quarts added. The XL oil provides an economical answer to a short term need.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by EF: space

Low use vehicles

Change oil every 12 months or 10,000 miles whichever comes first. Have been following this protocol for 5 years with good results . I usually don't put 10,000 miles on yearly.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Doc: space

Top of the line product

Use amsoil in everything.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Steve: space

Love it

Worry free oil

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Royce: space

Great for longer life

I use XL in my 2013 GMC Sierra and My 2011 GMC Terrain, The 5w30 keep them working like new!

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Sparky413: space

Best oil

Both my 2001 honda accords seemed to run smother after first oil change with amsoil

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by J. Rasmussen: space

Best available

I've used nothing but Amsoil in my vehicles for many years. Wouldn't change.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by L. Barr: space

Use the best forget the rest

Use in my POV'S , I recommend 100% synthetic oil for any vehicle if you hope to keep you car a long time.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by BuggyMan: space

Switched from Conventional to AMSOIL 3 years ago

I utilize 6 different types of Amsoil in my 187,000 mile 2003 VW Golf, a 2009 Subaru Forrester with 160,000, my 1987 Chevy 3/4 ton pick-up, a modified VW powered sand rail and a diesel tractor and old IH Cub Cadet Kohler power garden tractors. My fuel mileage increased in my Golf by an average of 2 mpg, the Amsoil Small Engine Oil has decreased the wear on my old K-series Kohlers. Amsoil has been a good value from the price perspective.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by sam: space

product expensive

I prefer to use other products that are not as expensive

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Josh: space

Great product

Oil doesn't break down as fast as other oils

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by George: space

Amazing product.

For years now I have used Amzoil. The Jeep I have has a high performance Chevy 350 that had cooling issues. A few times it went well above normal temps. The oil did not break down, no damage was done to the engine.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Pat: space

Great Product

Amazing oil! Has troubles with my silverado having lifter tick when it was cold out. After I used this oil and the amsoil filter,the tick went away and has not come back at all even on the coldest wisconsin days! Definitely shocked and amazed

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Pmarkham: space

I could feel the engine

Outstanding, I could actually feel and hear the engine run smoothly. Instills confidence that the product is what it claims to be.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jim: space

Became a distributer. Love the product

I visited your booth at a Goldwing Rally and signed up. I used the Motorcycle 10W 40 in my Valkyrie and it shifted so much better and over 5k miles it didn't change. Made a believer out of me. I have 3 motorcycles, 2 cars and a conversion van. Using Amsoil in all of them.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Aaron: space

I will buy this oil again

I use Amsoil in my vehicles, Harley, and my zero turn mower because it's the best oil and keeps my engines running smoothly.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by The niterider: space

Excellent product!!!

I am using it in my Challenger RT plus and my RAM 1500 sport, both hemi motors and it helped quiet the valvetrain down and increased gas mileage by a couple mpgs, along with feeling a little more freed up ponies from under the hood. Will definitely keep using it!! Plus the reassurance of being able to go 6000 miles and above between oil changes knowing my motor is safe.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Dodge boy: space

10.30 motor oil

Great product we have a soul in everthing from lawn tractors to snowblowers and generator. Thanks Amsoil

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Carl: space

The best money I can spend

I used Amsoil for my race motorcycle. It's practically unbelievable that I raced that motor for over 80,000 miles. All my vehicles use entirely and only Amsoil fluids. My work truck, over 200,000 miles, runs smoother and more dependable then the day I bought it. With a clutch strong enough to screech the tires and a temperature gauge that never goes above the quarter mark on a hot Florida day. I cant thank Amsoil enough for saving me thousands in vehicle maintenance.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Kody: space

Love it!!

Wonderful product!! Slowly getting all my fluids in all my vehicles switched to amsoil

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Johnny Comet: space

Best oils for any and all applications Period!

I have been a fan of Amsoil for several years after switching to if after using Mobil 1. At oil change time, Mobil 1 would pour out like water. The first time I used Amsoil and did a routine oil change the difference was startling. The oil had maintained the same consistency, minus color, as when I first added it to the engine. Upon cleaning out the oil drain pan, the used Amsoil oil was so slick, it actually appeared to not have broken down at all. Don't buy any other product, buy Amsoil and you too will use nothing else. I use there products in all of my vehicles, lawn mowers, leaf blowers and snow blowers.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jay: space

Great product

Great oil. Superior performance. Recommended

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jason the diddy: space

Love this stuff

I have noticed a huge change in my trucks performance and gas mileage. I would absolutely recommend Amsoil to anyone. Now I need to get the rest of the product line diffs,trans, and transfer case Amsoil juices.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by fatcrack: space

i will buy it again and again

great stuff

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Chuck: space

XL 5-30

2000 Jeep Grand Cherokee V8, 260,000 miles and still smooth and quiet, been using AMS for the last 160,000 miles

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Josh: space

Good product

I use this oil in all of my vehicles seems to be doing pretty good don't have any complaints

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by tony: space

i will continue to purchase

engine runs cooler

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Art: space

Yes I Will

The Best items on the Market

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mud: space

I keep buying their products for all the cars in the family

Use that in my wifes Honda, and their other products in my Cummings, VW & Subaru.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by midnight trucker: space

best oil ever

I have been a mechanic for over 40 years on everything from lawnmowers to autos and mostly class 8 trucks with Cummins, cats, Detroits both 2 and 4 stroke, Mack and Volvo diesels. also every type of heavy equipment from all the major manufacturers. I have rebuilt hundreds of gasoline and diesel engines. I know very well how important top quality engine oil is but I didn't think you could hear a difference in engine sound until I put 0w20 xl amsoil in my 2011 honda crv with 110,000 miles on it. I didn't expect to feel or hear any difference as I never did at any other oil change in my life but the first time I brought it up to speed on the highway it sounded quieter than usual so I done a few rapid accelerations and was convinced it was definitely quieter so I changed it in my 2012 crv with the same results. This amazes me that oil can make this difference as after thousands of oil changes in my life I had never experienced this before.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Don: space

Really like this oil

first time using and had to seal up leaks on valve covers

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jr.: space

Amsoil products Forever !!!Q

I use the XL 0W-20 in my wife's daily driver but use a variety of the Amsoil products in performance applications ranging from airboats to drag race cars.
I am always pleased with the performance and always receive the products quickly after submitting an order.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Henry: space

Great Oil

I have been using Amsoil in particular the XL series for many years. I have 2 vehicles over 500000 km. Both vehicles are running good. The engine is going to outrun the rusty body!

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Don: space

Great oil at a great price

Great synthetic oil. Become a member and take advantage of pricing benefits. You'll be very happy.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Ray: space

I would Purchase this product again

Very good oil just like the rest of them soil could be price more competitive

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mr. Clean: space

Good stuff

Have been using amsoil products in my cars, pick up trucks, and motorcycles. Always pleased with performance, no problems at all. Price is fair.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by XJChad: space

I run it in everything

I run Amsoil in all of my on road and off road vehicles.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mike: space

Outstanding performance

I have been using amsoil oil in my 2011 pick up for 2 years and change it after 20k kiss or so. I have been using them highest grade due to long oil change frequency but decided that I would go for one level down. My truck seems to like it more and my mileage has gotten better also I saved a little money in the purchase. Love it and all of Amsoil's products

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Tom: space

Yes

Great Oil!! Hard to believe a Oil change would make so much difference but IT does! Great oil!! Our Vehicles run better and better! I tell all my friends about it.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Shane: space

I would recommend Amsoil

I use Amsoil in all my vehicles. Engines run forever on Amsoil.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Skipbyme: space

Great Product

To bad can't buy locally. One great product.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Tim: space

Use several Amsoil products

Proudly use AMSOIL products

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by andrew: space

I would buy gain

Used the product in my Toyota pickup. Works Great

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Chuy: space

Nothing but the very best!!

I run this oil in my boosted truck and work trucks and can't praise it enough!! This is the only oil that i trust!!

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Chief: space

Will save you time and money.

Running quitter, longer and better fuel economy.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Len: space

Amsoil Helps Engines Last

I've used Amsoil in my previous Silverado of 18 years which was running great when I sold it and a new truck. Logged over 220K miles and never had an issue with oil leaks or major engine trouble.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Manuel: space

Awesome product!

I did the switch from a competitor to AMSOIL over a year ago now. This not only meet expectations but surpassed them. Love being to go long between changes which saves money as well.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Wompus: space

Been a Amsoil user since the early 70s.

I have Amsoil in everything from my air compressors to my weed eater. Every truck, car and boat I have ever owned has used it, and my 2 street rods have used it since I built them in 1990!
If you want the best, like me, then this is the oils for you!
I refuse to use anything else...

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Don: space

Excellent product - my go to oil of choice

I use this product as my regular run of the mill oil for my daily driver autos. We put about 2500 miles per car per month.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Rod: space

Works for me!

The perfect oil fom the mileage I drive.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Brochario: space

First time buying and I think I'll stick with it.

So far I have a good impression but I will reserve my comment till my next change.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Joey: space

Love the oil

Have been using Amsoil for the past year and I feel a difference in my vehicle. It's runs so much better, especially when it gets really hot and cold here in Vegas.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Anthony Dragon: space

Overall good product

No noticeable difference in power like some have told me, but it is still a good oil and keeps my fuel economy up. Will definitely buy again and I recommend this or the Signature Series to others. I wish they made this weight (10W-40) in Signature Series.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Fairchild Garage: space

A long time user.

All my cars (well, except for the ones with mileage above 400,000 km) and motorcycles get synthetic oils in them. When I can get Amsoil, that is my oil of choice. Amsoil has been my desired oil for years. Is it better than any other brand of synthetic oil? I don't know from experience, however synthetic oils help my vehicles run cooler, and I believe that synthetic lubricants provide a more consistent layer of lubrication under all conditions of use.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by BWC: space

AMSOIL 5W30 XL

Recently switched to 5W30XL on my GMC Canyon after trying Royal Purple. My truck runs smoother and I'll stick with AMSOIL. Do wish there was an AMSOIL filter available for my 2017 3.6 Canyon. I'd use 5W30 Signature Series.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Sidney: space

I would buy this product again and again.

I use this product in a1990 f150 300 inline 6. I use only Amsoil products because they where the frost in synthetic oil and only synthetic. They did not convert from conventional oil to synthetic like all the other oil companies. I remember when Amsoil came out in the 70's.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Steve: space

Great product

You can trust it to do its job

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mr. Goodwrench: space

Amsoil review.

I have used Amsoil motor oil, transmission fluid, brake fluid, and gear oil in my vehicle for 118, 000 miles now. I feel it is protecting my vehicle very well.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Nitrosnifer: space

Delivers as advertized.

Keeps my engine clean and running smooth

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mreds: space

I use this oil in my F150 and my car

I can see an improvement in gas mileage I can hear the difference in sound and feel the better performance as the miles build up.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Tom: space

Lives up to expectations

Love that I can change my oil once or twice a year.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Donald: space

Better than OE oil.

This oil lasts 10k but I change mine at 7500 to keep the warranty status.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jim: space

Never had an oil related issue using this product.

Personal vehicles

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Double A: space

Only oil I believe in

If you want your things running the best use the best. I wont run any other fluids

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Double A: space

The good stuff

Hands down the best money can buy

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Charlie: space

Total Satisfaction

I have been using Amsoil for about two years now. I recently purchased the XL 0W-20 for my wife's SUV and my commuting car. The product arrives quickly and performs great! I enjoy being able to order the oil filters and other additives all at the same time.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Grizz07: space

This is a great product

I use amsoil products when ever I can

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mr. HoneyDo: space

What's not to like.

Is AMSOIL expensive, yeah a little, but if you sign up for the Preferred Customer it not bad. I'm definitely a pay a little more in maintenance and avoid having to pay a lot in repairs.

I used to buy the AMSOIL Signature version of the 0W-20 that my truck calls for, but I switched to this to save about 50% on the cost. I get about 6k miles between oil changes (changing at the 20% oil life remaining mark) and it appears I'll get that same interval maybe a bit more (maybe 500-750 extra miles) with this grade oil vice the Signature. I would buy again for sure.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Lee: space

Money well spent !!!!

I use this oil in all my vehicles
Five old chevy trucks my boat
Dirt bike and my wife's new car.
This is the best oil on the market.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mike: space

I use this product all the time.

Good oil for a budget but don't want to skip on quality

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Sparky1775: space

Exceptional Product

I originally test the full synthetic in my High mileage Pathfinder and then the XL Boost in my F150 both products have performed above and beyond my expectations.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Oil Can Harry: space

Wife's daily driver

Been using Amsoil in this one for a while. Smooth winter time starts, no engine noise.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Oil Can Harry: space

Switched another vehicle over

1976 Chevy 350 running smooth and quite. No lifter noise and another one in the stable on Amsoil.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Ex Boeing guy.: space

I've used many AMSOIL products for many years.

I use Amsoil on both my vehicles and boat. I drive and fish in some very remote areas so I want worry free operation. Amsoil gives me that peace of mind.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by MotoGizmo: space

Best oil for the buck

I use this oil for both my 94 Ford F150 (250k miles) and my wifes 2007 Camry XLE with (120k miles) and am pleased with how well this oil has kept these engines running.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Moto Gizmo: space

Sold on Amzoil

I have been a customer for Amzoil for over 12 years and will continue to do so as I believe it is the best oil money can buy.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Michael: space

Great product

Solid product, love using it

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Rock: space

I will buy this product again.

Less valve tapping on cold start ups and seems to run a couple of degrees cooler. Love this stuff. I use it in everything I own.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by KO: space

Amsoil the Best

My next door neighbor got me started using Amsoil some years ago. I now use nothing but Amsoil in all my vehicles. It is an excellent product and it is really cheaper to use than conventional motor oils because of the extended change times. I have run Amsoil as long as 24,000 between changes with no problems. I now change my oil when the vehicle computer tells me it is time to change and that is usually aroung 9,500 to 10,000 miles.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Ryan: space

I would buy this again

These products work as they should never need to question

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by John,: space

I made the switch

The best thing I found out about using this product...cost savings...
with my membership and having only to change the oil 2 times a year ( on 3 cars ) as a Preferred
Customer and the ability to go 12,000 miles between oil and filter changing I save $$$ dollars compared to buying synthetic oil from local auto stores..I usually go every 6 months between the oil change because of the change of weather in my area and I very really put 12,000 miles a year on any of my cars so it does keep that worry off my back when I know the oil has enough life on it if I run a bit late changing it .

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by bob: space

5-30 synthetic oil

Been using this product for several years now. My vehicles run like new, quiet and cool. Talked my boys (2) into using it as well an d we use the products on 3 motorcycles. All vehicles run great. I change filter on the cars every 6k and the oil, yearly, regardless of miles. Works just fine. use Wix filters for everything.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Team 70R: space

Awesome Oil!

My 2008 JKU was burning crazy amounts of oil. Since I've started running Amsoil it's not using nearly as much oil now and the oil looks so much cleaner as the mileage goes up!

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jim: space

Nearly 20 years with this product

I have used Amsoil products since y2k without fail and recommend it to everyone I know. Motorcycles, yard power equipment and my latest suv adventure story... have you ever ran out of oil or burned your engine out of oil, I have with regular oils and those vehicals were dead afterwards. Short here is no oil high temp oil came on nightmarish lost 6 quarts of Amsoil... 3 months later and with replaced Amsoil as if it never happened

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Earls TL: space

Amsoil Acura TL

Currently have 433,000 miles with the same engine. I only use Amsoil in my car!

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Eric: space

Great what else to expect

Best oil on the market

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Cheese: space

I will buy this again

Before i used amsoil my engine had a loud and very noticeable tick. After switching to Amsoil synthetic the tick went away and the SUV sounds like a new car. When stopped you can barely hear the large 5.9L V8 idling away, it so quiet.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Dozer man: space

Oil and engine cleaning products

If I go past my oil change I don't have any concerns because the oil still looks new and protects my engine.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mike: space

I have used this product in different vehicles

This is a great product and works well in any vehicle.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Phil: space

I would definitely buy it

I use it in my f150 and I love it

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Rudy the golfer: space

i would buy this product again.

I used it in my motorcycle and it quieted the engine right down and it ran smoother than ever.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mark: space

Used these oils for 35 years

In all types of trucks, cars, boats and motorcycles

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by damguy: space

will surely buy again

changed from 10/30, works like a champ in my 2005 Silverado 225,000 miles pressure stays constant even under load

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Marty R: space

I would buy only this product

My truck mileage increased as soon as I switched from Mobil 1, truck has 260000 miles on it

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by JimP: space

Good Stuff

Put this in my light duty, full size pickup. Noticeable difference right away. Engine quieter and clean.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Too-Tall: space

Used in all my vehicles - head to toe!

I have been using Amsoil for years. Everything from Signature Series to XL. All of my vehicles out-last anyone else's I know. I gave my daughter a 1997 Toyota Corolla years back and just put it to sleep with 387,000 miles on the clock.

I have a 2005 Acura RL with 168,000 miles and it too runs like a top! I attribute the use of Amsoils synthetics to its longevity and have no doubt there's another 168, 000 left in her.

My 2004 Dodge Ram has been on a once per year oil change interval since I bought it. It too will easily give me another 100,000 of service!

2012 Prius V. with 105, 000 miles and the oil still looks clean after 10,000 mile change intervals.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Edp: space

Great stuff

I've been using Amsoil products for over 30 years. I had stopped for a period of time. I've been using this product now in my 2015 Focus since I got it. 30,000 miles and the inside parts of the engine I can see through the fill port are as bright and shiny as the day I bought it.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Last of The V8's: space

I love this product.

I use Amsoil XL 5w-30. I change my oil twice per year in four vehicles. It provides excellent protection for my engines and keeps them clean and running strong. I love all Amsoil products.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by John: space

I use these Amsoil products exclusively.

I've been using Amsoil products for many years and have always been extremely pleased. I've never had an engine wear out. I have a snapper mower that is 25 years old and still going strong.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Floyd: space

Great product

Great product, use in my pickup, have used for 12 years, in 2 trucks. Retired Wisconsin snowplow driver, and switched to Amsoil, because my pickup would be outside at work, for up to 16 hours, in below zero temps. No problem turning over and starting, after switching to Amsoil.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Lots of Engines: space

The Right Lubricant for the Job

The Amsoil XL series has protected my vehicles for many years. When the formula was changed to protect against Low Speed Pre Ignition (LSPI) as well as an extended drain interval, I knew it continued to be the right lubricant for the job. Recently I purchased a pickup truck that could be vulnerable to LSPI so this formula change was very timely. I appreciate that Amsoil offers many choices for lubricant applications. This is a better approach than "one oil fits all" approach.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Joe: space

Best Oil Made

I use Amsoil in everything I own that takes oil. Lawnmower, cars, diesel truck, tractor, motorcycle.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jim: space

Only oil I use

I began using Amsoil products in 1996 in a Buell S2T, with a HD Sportster 1200 engine. The temperature change from HD oil to Amsoil was almost 20 degrees cooler. I have never had a mechanical problem, including no clutch slipping with the bikes. I use it in my 2006 Victory 8 Ball, our 2010 Lincoln MKX, and my 2000, 2004, and 2013 Ram Hemi..

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Stewart: space

You can trust synthetics to protect your engines.

Have used synthetics in all my vehicles for quite a few years now. You can tell the difference the first time you change over to synthetics.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Wally: space

5w-30

I use this in my Chevrolet Silverado and Kia Optima Hybrid and follow the manufacture recommend oil change interval.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Darrell: space

Great Product

Have always used either Amsoil or Mobil 1. Both are great oils and and every other oil change at 7500 miles in my Toyota Tundra, Lexus, Mazda and Honda CRV. I send the old oil off to Blackstone for analysis. The analysis of Amsoil and Mobil 1 both always show excellent wear and Blackstone recommends that I could go much longer between changes. Thus I usually buy Mobil 1 because I can get it at Costco, don't have to pay shipping and this makes it much cheaper.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Michael: space

Love Amsoil

Love the whole product line, I use amsoil in everything I own down to my power washer. Never fails.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Tom: space

Quality products

Love the Pease of mind of only having change my oil twice a year. My 2005 Ram is approaching 200K miles and still running strong.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Catfish mman: space

Only products i trust

I use these products in all my vehicles and marine apps.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Rob: space

Best Product for my new Ford

Plan to use Amsoil for the life of my vehicle to help it last a very long time.
It's the best available.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Thomas: space

Great product, fast shipping

Love this in my truck, only having to change it once a year is awesome.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by JS: space

Good product

All my vehicles run on Amsoil. Just something you do if you want them to last.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jim the runner: space

The good stuff!

This oil is the best for my tutored car! You can really fell the difference ans see in the gas mileage!

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jean!: space

Been using for years,and always recommend Amsoil

Very easy to look up vehicle or toy. It's very convenient for me to order oil and filter and send it to the house.I use it in all my vehicles also my sons trucks.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by JT: space

Outstandingly oil

I use amsoil in everything, it has unbeatable protection and as a preferred member it comes at a great value

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jeep: space

I have used Amsoil in all of my gasoline powered vehicles

The XL gives me another choice. New vehicles get the premium oil but older,lower useage cars can use the XL

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Duro: space

I will but again

Excellent oil for those looking for a bit more protection that regular oil. Excellent in high milage vehicles especially.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Damian: space

I am a member

I am glad that ams oil asked. I drove my car 12,000 km in 7 months with the same oil and in top of that there were minus 24 celsius degrees outside, job well done.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by TDR: space

Only oil

This is the Oil I use to put in the other 3 family Kias . 2 collage kids and wife's Sorento . One spotage turbo and one non . The mileage intervals help poor ol dads pocket book .

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Brandon: space

I will always buy amsoil

I use there motor oil in my 454 in my 92 suburban along with there fluids in my diffs. Eventually will be switching to the trans fluid too. And I run it in our kia made the engine run alot quieter then the factory oil

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by B-rock: space

what I expect from amsoil

It's a great product that I know I can depend on. I use this in my work truck. Even with the extended mileage I know it's a product that I can count on to take to the limits.
Thank you amsoil

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Doug: space

Amsoil XL

I've been using Amsoil for 12 to 14 years now and have never been disappointed by the product. I use Signature in my Jeep and XL in the rest of my families 2 or 4 cycle motor driven machines. 6 cars, 1 motorcycle, 3 lawnmowers, 2 chainsaws, 3 weed eaters and 2 generators.
I could go on, but just say "I have a lot of trust in AMSOIL."

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Ryoko: space

I Love Amsoil

I started using Amsoil in 2000 when the garage I started working at sold it,haven't used anything but since then. It's a wonderful product and I love the longer service intervals for an oil or tranny change especially since I don't have a lift at home

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by koz: space

5w20 extended range oil

My vehicles run better, the engines are clean

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Serge: space

Only the best!

Got this for my 2007 Pontiac Solstice 2.4L that's been turbocharged with a custom K04 turbo kit. Engine runs great!

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by James: space

For a Chevy Equinox and would buy again

Good for the car and helps milage

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Hammer: space

Medicine for my Mark LT

Have been using Amsoil in the Mark LT since 2006 and it has 130,000 miles and engine is good and does not use or leak oil.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Bert: space

I will keep buying this product.

I've used this product for about a year now and the intervals between oil changes continue to grow. I use my trucks gauge to see when it is needed. First couple of times I didn't really notice a difference. Now I'm on my fourth oil change and it has really made a big difference in the mileage between the last change. Great product. Keep it coming.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Emanuel: space

Great product

Exceeded my expectations

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Ron: space

I would use AMSOIL in every engine

I started using Amsoil in my '84 Volvo at around 150,000 miles.
I drive the car about 70 miles a day, hard use.
I spend far less time doing oil changes and I almost never have to add oil.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Welby: space

Amsoil saved me from expensive engine repairs!

Ok, I am an Amsoil customer for life... Seriously! In February when it was still wicked cold here in Maine, I was having some engine starting and idling problems with my SUV when the overnight temperatures were 15F and colder. The engine would default to a safe "limp home" mode, and I was facing some expensive engine overhaul costs. My mechanic was very sure the symptoms had to do with dirty cam phasers. He suggested using Amsoil Engine and Transmission Flush to clean the engine (including the cam phasers) and switch to Amsoil Signature Series Synthetic Oil. I followed his advice and the results have been AMAZING! After the treatment I have had zero starting problems. And even better, the rattling sound that I thought was the water pump turned out to be the timing chain... no more noise! The Amsoil Engine Flush and motor oil solved both problems and they have given my 135K mile engine new life. I plan to treat all of my vehicles with these Amsoil products, and that includes the transmissions as well. If that wasn't reason enough to use Amsoil products, when I made my first purchase I decided to register as an Amsoil Preferred Customer. I saved much, much more than the registration fee over the cost of Amsoil products at the local auto parts store on that first purchase alone. Engine problem solved and low prices equal CUSTOMER FOR LIFE!! Thanks Amsoil!

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by cheyfinn: space

yes, i have used AMSOIL for over 30 + yr's

car, truck, motorcycle & snow blower and lawn mower

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Tom: space

Impressed !

I had heard about Amsoil and reviewed their data and wondered how much was real and how much is just advertising. Then I bought a new truck and thought to myself that I'm really going to have to take care of this thing because I probably wouldn't be able to buy another one in this lifetime due to cost and old age. If the data I had seen was accurate than Amsoil was the direction I needed to go for protection. I used the factory oil for 4900 miles then made the switch to Amsoil. So far I'm very pleased. Most notably with the fuel economy. I've gained 1.5 to 2.0 MPG in highway driving. That to me is impressive. I'm sold.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mike: space

Using the XL Series

The latest price increases of the Signature Series Motor Oil no longer make that oil the bargain it used to be. I find using the XL Series the same as far as mileage goes and the increased protection over the OE Series gives me more peace of mind.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mike: space

Why use XL

I have full confidence in Amsoil motor oil. SInce I change oil more frequently and the price of the Signature Series has become extremely high, I find the XL series to be a better bargain.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by john: space

type of oil

I would not purchase it if I did not think it was the best product out there. thanks

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Davidh82: space

Great stuff

I have 3cars (one older corvette), 1 truck, 1 boat, and one Harley Davidson. I use Amsoil in all of them. My last truck I traded in had over 300,000 miles on it. Dealer commented "wow , this truck still runs great". all my vehicles run quiet with very little mechanical problems due to engine wear. I wouldn't think of using any other oil in my vehicles.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Gio: space

Best oil by far!

I use this oil on my 17 camaro ss and by far the best oil I've used! I put it in all of my 5 cars now and I wouldn't use any other brand from now on.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Ferdy: space

Extend your oil change intervals!

Love this product! My 200,000 plus mile Grand Cherokee is still going strong and getting 19 mpg. If your concerned about the added cost, don't be, with the extended change intervals you will save money in the long run! I will be changing my new wrangler to Amsoil as soon as it need fluid changes.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Groundpounder: space

I only use the best

My pony car and h d scooters perform the best and run the coolest

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Norkat: space

I will purchase this product.

I will buy this product everytime my friends and family requires it. All of AMSOIL products is what I will use on everything that I own.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Scooter: space

Best Oil I've Have Ever Used

Best Oil I have ever used, and if you don't believe me read the specs. Best service and tech savvy.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Runky: space

So far, so good

Using this for the first time. I've used amsoil for many years; usually the signature series but I'm trying the XL because I don't put a lot of miles on any specific vehicle I own. It seems to be a good alternative with a little break on the price.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Big chris: space

Best oil I have ever used and will continue.

Car runs smooth and quietly. You can feel the difference. I recommend Amsoil to all I meet.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Bear: space

I have been using this product for years --

I use this product on a Chevy truck and a GMC truck both trucks run great and smooth and i do believe this oil helps with fuel economy

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Samurai Z: space

I will always use AMSOIL in my vehicles.

AMSOIL makes oil changes well worth it. I know they upped their change intervals, but I still change my oil every 10k miles. When I do the oil change, it almost seems like I should be following their new interval suggestion. The oil after the amount of use is darker, but it's still very fluid and not thick like other oils I've used before AMSOIL. I use their filters along with the XL oil and it is the perfect combination. I thank AMSOIL for some of the best products.

Item Reviewed: XL Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Patch: space

Makes other oils obsolite

I have used this product for several years. I now have 240000 miles on my 1996 Ford ranger Ranger. I change oil before my annual Archery elk hunt, and add a bottle of PI. Easy as eating Pie and Ice cream.

Item Reviewed: Extended Life 10W-40 Synthetic Motor Oil (XLO)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Rbfrfghtr: space

I have been buying this product for years.

I have use this in my last three vehicles and I will keep using it.

Item Reviewed: Extended Life 10W-40 Synthetic Motor Oil (XLO)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Sambo: space

Use it everyday

In trucks cars,motorcycles, lawn mowers

Item Reviewed: Extended Life 10W-40 Synthetic Motor Oil (XLO)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Andy: space

Best Synthetic for High Mileage

My car has over 385,000 miles, and convinced this motor oil a major reason its still going strong. This oil has a higher viscosity than other synthetics I've tried, which allows me to use a good synthetic for thermal protection, yet prevents minor leaks typical for high mileage cars.

Item Reviewed: Extended Life 10W-40 Synthetic Motor Oil (XLO)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by TimU: space

Good oil, but could be better

I was told by the Northstar project manager at GM to use this weight oil in my 2002 Cadillac DTS. After 250000 miles I've had no problems and she still runs like new.
My only complaint is this weigh of oil isn't offered in your Signature series. Wonder why?

Item Reviewed: Extended Life 10W-40 Synthetic Motor Oil (XLO)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Burningwell: space

nothing but the best

I have been using Amsoil products for over twenty five years in all my vehicles and have never had a problem related to poor lubrication.I have never purchased a new car in my life and routinely run up over 200,000 miles on whatever I'm driving.I think that say's it all. Frank

Item Reviewed: Extended Life 10W-40 Synthetic Motor Oil (XLO)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mark: space

Will always use this product!

Use this in my old Chevy 454 powered motorhome. This motor really works hard and gets Hot. Oil pressure stays up on hottest days and no leaks or oil burning. It's the best protection for my motor that
I can find.

Item Reviewed: Extended Life 10W-40 Synthetic Motor Oil (XLO)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by BogusRacing: space

200,000 miles

Amsoil 10w-40 in my F150 with 200K miles in her and still runs like new

Item Reviewed: Extended Life 10W-40 Synthetic Motor Oil (XLO)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by n/a: space

The only lubricant products.

Amsoil has been the only choice in lubricants since 1985, what else needs saying? Multiple BMW motorcycles, my wife's 2000 F150 with many miles, a couple of Suzuki Sidekicks, both high mileage with routine maintenance only. Enough to convince even those with little automotive knowledge.

Item Reviewed: Extended Life 10W-40 Synthetic Motor Oil (XLO)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by DEREK: space

Happy, happy, happy

This was purchased for a co-worker. He spoke to me about using the products and I explain how there was no better in the market. He is very happy and I feel will be returning for all his lubricate needs.

Item Reviewed: Extended Life 10W-40 Synthetic Motor Oil (XLO)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by John C: space

I will always use AMS oil

I am 71 years old in my second childhood. I have used every kind of oil in my life time. I personally will never use any other oil in my special car other than AMS. I bought a 2013 SI Honda Civic and I put a supercharger, different exhaust and had it dyno tuned and much more. Results over 300 HP to the wheel. I fell safe using this oil up to 6000 miles but I change at 30% not 15%. If you use this oil in your car you will never change to any other. I guarantee that.

Item Reviewed: Extended Life 10W-40 Synthetic Motor Oil (XLO)
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