SAE 10W-30 Signature Series Synthetic Motor Oil (ATM)
 SAE 10W-30 Signature Series 100% Synthetic Motor Oil (ATM)

The Top Tier of AMSOIL Synthetic Motor Oil

AMSOIL Signature Series Synthetic Motor Oil delivers extraordinary lubrication in all types of automotive gasoline engines. By combining industry-premier synthetic technology with AMSOIL premium additives, Signature Series Synthetic Motor Oil exceeds the higher performance demands of modern engines.

Package sizes include:

1-Quart Bottle
1-Gallon Bottle
2.5-Gallon Bottle
30-Gallon Drum
55-Gallon Drum

Product Code: ATM • Brand: AMSOIL




MSDS Data Sheet French Data Sheet

Product Details Tech Data Reviews & Rating

Product Applications
AMSOIL Signature Series Synthetic Motor Oil is excellent for use in all types of gasoline-fueled vehicles. It is recommended for all domestic and foreign vehicles requiring any of the listed performance specifications:

Product Application Specs

• API SN (Resource Conserving), SM…
• ILSAC GF-5, GF-4…
• ACEA A5/B5, A1/B1
• GM LL-A-025, 6094M, 4718M
• Ford WSS-M2C205-A
• Chrysler MS-6395

Product Description
AMSOIL Signature Series Synthetic Motor Oil delivers extraordinary lubrication in all types of automotive gasoline engines. By combining industry-premier synthetic technology with AMSOIL premium additives, Signature Series Synthetic Motor Oil exceeds the higher performance demands of modern engines. It withstands the stress of higher horsepower, higher heat and complicated emissions control systems. Signature Series Synthetic Motor Oil is engineered to outperform competitive conventional and synthetic motor oils. It delivers long-lasting performance and protection.

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.

Extends Drain Intervals
AMSOIL Signature Series Synthetic Motor Oil can extend drain intervals far beyond those recommended for conventional oils. Its unique synthetic formulation and long-drain additive system are inherently stable to resist oxidation and neutralize acids over longer periods. Signature Series Synthetic Motor Oil is designed to deliver the best possible engine protection, cleanliness and performance over extended drain intervals. It reduces vehicle maintenance and waste oil disposal costs.

Oil Filter:

Any brand of oil filter may be used with Signature Series Synthetic Motor Oil. For maximum convenience, however, use an AMSOIL Ea® Oil Filter. Made of fully synthetic media with greater filtering efficiency and dirt-holding capacity than conventional filters, Ea Oil Filters are recommended for 25,000 miles/12 months or 15,000 miles/12 months, depending on application, which coincides with Signature Series' once-a-year drain interval. While Signature Series' 12-month service life remains intact if a non-Ea Oil Filter is used, the filter must be changed according to its manufacturer's recommendations.

Maximizes Fuel Economy
AMSOIL Signature Series Synthetic Motor Oil is designed to maximize energy efficiency for improved fuel economy. Unlike conventional oils, its uniform molecular structure helps it flow more freely and reduce friction between metal surfaces. Anti-friction additives are included to further improve energy efficiency.

Reduces Engine Wear
Signature Series Synthetic Motor Oil provides outstanding anti-wear protection. It has excellent viscosity film strength to separate metal surfaces and robust anti-wear additives to further reduce wear in metal-to-metal contact regions for improved engine life.

Reduces Oil Consumption and Emissions
Volatility (burn-off) occurs when oil gets hot, causing high oil consumption and emissions. AMSOIL Signature Series Synthetic Motor Oil exhibits an extremely low volatility rate; it controls volatility-related oil consumption and emissions.

Excels in Extreme Temperatures
AMSOIL Signature Series Synthetic Motor Oil resists thermal (heat) breakdown better than conventional oils. It is heavily fortified with detergent and dispersant additives to help prevent sludge deposits and keep engines clean. And unlike conventional oils, Signature Series Synthetic Motor Oil contains no wax, staying fluid in the coldest winter temperatures for easier starting, improved oil flow and reduced bearing wear.

Compatibility
AMSOIL Signature Series Synthetic Motor Oil is compatible with other conventional and synthetic motor oils. Mixing AMSOIL motor oils with other oils, however, will shorten the oil’s 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 synthetic motor oils.

SERVICE LIFE
AMSOIL Signature Series Synthetic Motor Oil is recommended for extended drain intervals in unmodified(1), mechanically sound(2) gasoline-fueled vehicles as follows:

• Normal Service(3) - Up to 25,000 miles or one year, whichever comes first.
• Severe Service(4) - Up to 15,000 miles or one year, whichever comes first.
• In all non-gasoline-fueled vehicle applications, extend the oil change interval according to oil analysis or follow the OEM* drain interval.

*OEM - Original Equipment Manufacturer

(1) Engines operating under modified conditions (non-stock) are excluded from extended drain recommendations. Examples include the use of performance computer chips; non-OEM approved exhaust, fuel or air induction systems; and the use of fuels other than those recommended for normal operation by the manufacturer.

(2) Mechanically sound engines are in good working condition and do not, for example, leak or consume excessive amounts of oil, are not worn out, do not overheat, do not leak antifreeze and have properly working emissions control systems. AMSOIL recommends repairing malfunctioning engines prior to the installation of AMSOIL synthetic oils.

(3) Personal vehicles frequently traveling greater than 10 miles (16 km) at a time and not operating under severe service.

(4) Turbo/supercharged engines, commercial or fleet vehicles, excessive idling, vehicles with more than 100,000 miles without prior continuous use of AMSOIL motor oil, daily short-trip driving less than 10 miles (16 km), frequent towing, plowing, hauling or dusty condition driving.

AMSOIL Ea® Full-Flow Oil Filters are designed for extended change intervals. They stop smaller particles, flow more oil and last longer than regular filters. For best performance, use AMSOIL Ea Full-Flow Oil Filters.

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 ATM.

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

TYPICAL TECHNICAL PROPERTIES
Signature Series 100% Synthetic 10W-30 Motor Oil (ATM)
Kinematic Viscosity @ 100°C, cSt (ASTM D-445)10.5
Kinematic Viscosity @ 40°C, cSt (ASTM D-445)62.5
Viscosity Index (ASTM D-2270)158
CCS Viscosity, cP @ (°C) (ASTM D-5293)3646 (-25)
Flash Point °C (°F) (ASTM D-92)232 (450)
Fire Point °C (°F) (ASTM D-92)248 (478)
Pour Point °C (°F) (ASTM D-97)-48 (-54)
NOACK Volatility, % weight loss (g/100g) (ASTM D-5800)5.3
High Temperature/High Shear Viscosity
@ 150°C, 1.0 X 106 s.-1), cP (ASTM D-5481)
3.2
Four-Ball Wear Test @ 40 kgf, 75°C,
1200 rpm, 1 hr, scar diameter, mm (ASTM D-4172)
0.35
Total Base Number (ASTM D-2896)12.6

Did this product meet your expectations?

(click on a star to rate)
Product Name: SAE 10W-30 Signature Series Synthetic Motor Oil (ATM)
Current Rating: 4.95 out of 5 stars
Total Votes: 43 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 Gary: space

Good product; I've use it for many years.

I use AMSOIL motor oils in all my vehicles, have used them for many years and consider them superior to all other motor oil brands.

Item Reviewed: SAE 10W-30 Signature Series Synthetic Motor Oil (ATM)

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 Adam Delgado: space

BEST OIL

Best oils ever hands down run it in all my cars including my 331

Item Reviewed: SAE 10W-30 Signature Series Synthetic Motor Oil (ATM)

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 old guy: space

Great

I only use Amsoil in everything i own .

Item Reviewed: SAE 10W-30 Signature Series Synthetic Motor Oil (ATM)

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 Jomo Watts: space

10W-30 Synthetic

Best investment for any vehicle long term, 25,000-mile intervals for oil and filter. You save so much and the quality of the oil is far better than all I've tried!!!

Item Reviewed: SAE 10W-30 Signature Series Synthetic Motor Oil (ATM)

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 ffokcaj: space

Have

By using amsoil it is saving money in the long run {less oil changes every year]ect.

]

Item Reviewed: SAE 10W-30 Signature Series Synthetic Motor Oil (ATM)

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 Five cars and one motorcycle: space

Yes I would buy again

Yes I would buy again been using this product for years about 20 years

Item Reviewed: SAE 10W-30 Signature Series Synthetic Motor Oil (ATM)

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 JACK I.: space

i run amsoil in all my vehicles

Great oil. No problems

Item Reviewed: SAE 10W-30 Signature Series Synthetic Motor Oil (ATM)

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

Definitely buy this oil again

I use Amsoil exclusively in all my vehicles and I have do so for years. The cars include a Jaguar Vanden Plas with 136,000 miles, a Hyundai XG350 with more than 360,000 miles, and a 1990 Chevrolet Celebrity 3.1 V6 with well over half a million miles on it. None of them have ever required any significant engine work and all drive well, use almost no oil and get excellent gasoline mileage. Additionally, I use Amsoil in a restored 1932 Ford V8, again, with no problems at all. There isn't any other oil I would even consider purchasing. Obviously, I use different Amsoil in different vehicles according to specifications.

Item Reviewed: SAE 10W-30 Signature Series Synthetic Motor Oil (ATM)

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 Shrimp: space

Lifetime Customer

I use Amsoil in both my car and my motorcycle! Better than anything out in the market!

Item Reviewed: SAE 10W-30 Signature Series Synthetic Motor Oil (ATM)

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

10W 30 Motor Oil

Great product to buy and also dependable

Item Reviewed: SAE 10W-30 Signature Series Synthetic Motor Oil (ATM)

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 BobCat: space

Very pleased with the performance of Amsoil products

I started using Amsoil Engine Oil in a higher mileage (130k) V6 and have noticed less lifter noise on startup. The oil seems to have good viscosity after 3k miles which should indicate longer oil change intervals. I also changed all fluids (diffs, trans, transfer case) over to Amsoil and have been very pleased with how the drive train feels. Of course new fluid always makes it better but it seems to coast and accelerate better than ever so I think the fluids have improved the vehicle performance slightly. At this time I haven't noticed any drastic MPG improvement but I do think there's just a little more power.

Item Reviewed: SAE 10W-30 Signature Series Synthetic Motor Oil (ATM)

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 BullderBob: space

Long Time User

I use AMSOIL 10-30 Signature in 3 vehicles,,and have an AMSOIL user for over 25 years.
I use 10-30 Signature in all 3 vehicles,and AMSOIL Diesel oil in my daughters Class A motor home

Item Reviewed: SAE 10W-30 Signature Series Synthetic Motor Oil (ATM)

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 Milton: space

Oil

Love this oil it's the best

Item Reviewed: SAE 10W-30 Signature Series Synthetic Motor Oil (ATM)

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 Daniel: space

Buy al time to replace your oil

I used this oil in my cars, good performance and gas improved. I recommend 100/ I put in my Acura TSX real pure Synthetic

Item Reviewed: SAE 10W-30 Signature Series Synthetic Motor Oil (ATM)

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 Kenny: space

Works great good

I use this in my 454 big block one tone and she works hard pulling a 14000 pound trailer fantastic love it

Item Reviewed: SAE 10W-30 Signature Series Synthetic Motor Oil (ATM)

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 Stephan: space

Will buy again

Oil works great, quieter smoother running engine .

Item Reviewed: SAE 10W-30 Signature Series Synthetic Motor Oil (ATM)

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 Walter: space

This product is the best and away Amsoil

This oil I use in my trailblazer and impala

Item Reviewed: SAE 10W-30 Signature Series Synthetic Motor Oil (ATM)

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

Works Good

I run this oil in a 1993 Dodge W250. This oil works great in this old truck. I am very happy with Amsoil, it is all I run in my equipment.

Item Reviewed: SAE 10W-30 Signature Series Synthetic Motor Oil (ATM)

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 Howard: space

Older is better

A little thicker for an older car with many miles.

Item Reviewed: SAE 10W-30 Signature Series Synthetic Motor Oil (ATM)

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 Larry: space

Great oil!!

I believe synthetic oils are great for any moving metal parts. No wear, No friction, saves money in years to come and makes my engines very dependable. My Pontiac now has over 260,000 miles and uses no oil, no smoke. Thanks to Amsoil!

Item Reviewed: SAE 10W-30 Signature Series Synthetic Motor Oil (ATM)

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 Jeremiah: space

The only Motor Oil I buy

If you were looking for the best you've found it! As simple as that!

Item Reviewed: SAE 10W-30 Signature Series Synthetic Motor Oil (ATM)

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 Jeremiah: space

Best in the World by Far!

The most superior motor oil in world! It actually last 25,000 miles in my 2009 Toyota Venza and 2007 Chevy Malibu! When I drain it at 25,000 miles it doesn't look like its even lost its viscosity or characteristics! Best oil on the planet!

Item Reviewed: SAE 10W-30 Signature Series Synthetic Motor Oil (ATM)

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 Cody: space

I am a devout amsoil fan!!

I have always loved amsoil products. I have a 2001 ss monte carlo and unknown to me that my motor had a internal coolant leak and I have used amsoil in it forever. I had put on over 200k on this motor w/leak before I developed a rod knock. I give amsoil all credit in that this engine went that long before it gave out. Love amsoil

Item Reviewed: SAE 10W-30 Signature Series Synthetic Motor Oil (ATM)

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

Great stuff

Its great stuff use it in my 1999 Tahoe

Item Reviewed: SAE 10W-30 Signature Series Synthetic Motor Oil (ATM)

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 David: space

Ford Pickup.

Used in my pickup along with Amsoil gear oil in the rear end and noticed an increase in fuel mileage.

Item Reviewed: SAE 10W-30 Signature Series Synthetic Motor Oil (ATM)

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 Craig: space

Great product

I don't put anything else in my vehicles.

Item Reviewed: SAE 10W-30 Signature Series Synthetic Motor Oil (ATM)

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 Carolina Traveller: space

I will be using this from now on in ALL my vehicles.

Learning that most "Conventional" oil lose is caused by consumption (boil off, blow by, clearances ect).
I decided to give it a try in my 340K mile Pontiac (45K on a new rebuilt 3.8l HO V6).
Not only did the oil lose stop it actually helps cool the engine down better now.
Bonny runs smoother. She has always been fast so I do not notice a performance increase.
Gas mileage improved. I was getting 17-18 mpg highway. Now I get 22-23 mpg.
I get 16 mpg city period. No improvement there. My suspicion in my lead foot has a lot to do with that.
At first consumption seemed to be the same.
Talking with the local guy he reminded me of the oil cooling lines and oil cooler underneath.
That's a full extra quart of conventional right there.
Once that boiled off (2 weeks) the oil level stayed constant.
I am on my second oil change now. New Amsoil recommended oil filter and new Signature Series 10W-30 Synthetic Motor Oil.
Funny thing was that after 15K miles it was still pretty clear.
I have 5K on her since this oil change. Still clean on the stick.
I became a preferred customer for the savings it offers me and my 9 vehicles.
Cutting the oil changes down to 1/4 of what they were makes up for perceived "extra" expenses.
the performance and stability of it makes it well worth it.
Signature Series 10W-30 Synthetic Motor Oil will be going into the Motor Home next.

Item Reviewed: SAE 10W-30 Signature Series Synthetic Motor Oil (ATM)

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 Roge: space

Great oil, specially for boosted cars

I've tried them all, and I was never happy entirely with the other oils. Some burned, some lost viscosity way too fast and some looked straight black just after a few thousand miles. That being said so far I'm loving Amsoil, doesn't burn, always looks clean at changes and holds viscosity. So far, signature series has been my favorite oil for my 2004 Evo 8. +1 to Amsoil I feel like I can trust it when I tracking the car or driving it around the streets.

Item Reviewed: SAE 10W-30 Signature Series Synthetic Motor Oil (ATM)

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 Terry: space

Freind of mine

I actually recommended to my friend so its for him and he's been using it for years. I have been using AMSOIL products for over 38 years. I have used almost every product AMSOIL makes.

Item Reviewed: SAE 10W-30 Signature Series Synthetic Motor Oil (ATM)

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 Woodsman: space

Beat This!!!!

2002 Ford Ranger, 598,898 original miles. V6.
Amsoil Filter and Oil.
Still running strong.
Dirt bikes, tractor, and 3 other vehicles,......I never used an "additive".....only fluids going in my vehicles are AMSOIL!!!!!!

Item Reviewed: SAE 10W-30 Signature Series Synthetic Motor Oil (ATM)

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 Old guy: space

I used this product because it delivers on it's promises.

I replaced a leading brand with Amsoil because genuine lab tests demonstrated superior performance in our hot climate. It ,as a bonus stay's cleaner longer in my motorcycle and high performance boat and car engines than other synthetics and petroleum based oils, which makes for far less combustion made carbon and fuel contamination, the two main engine damaging agents that accumulate in the crankcase..

Item Reviewed: SAE 10W-30 Signature Series Synthetic Motor Oil (ATM)

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

Synthetic products

When I went to all synthetic products on the motor home the transmission stopped slipping and my mileage also improved.

Item Reviewed: SAE 10W-30 Signature Series Synthetic Motor Oil (ATM)

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

Best oil as usual

Bought this product for my lawn mower. Was a great replacement to regular oil. Performs great. Experiencing easier starts and more quiet performance. Exactly what I was expecting from amsoil.

Item Reviewed: SAE 10W-30 Signature Series Synthetic Motor Oil (ATM)

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 H: space

I've used this oil , it's the best on the market

I use this oil from the 1st oil change 282,576 miles ago. No problem with the engine, it just goes and goes. We drive the car daily and for long distance and I never worry about the engine. I fully trust Amsoil.

Item Reviewed: SAE 10W-30 Signature Series Synthetic Motor Oil (ATM)

Reviewed by Liz: space

My 2003 Jeep Liberty loves this

Smooth & starts well in all temperatures. thanks.

Item Reviewed: SAE 10W-30 Signature Series Synthetic Motor Oil (ATM)
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