SAE 0W-40 Signature Series 100% Synthetic Motor Oil (AZF)
 SAE 0W-40 Signature Series 100% Synthetic Motor Oil (AZF)

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:

Quart Bottle
Quart Bottles (case of 12)

Product Code: AZF • Brand: AMSOIL




MSDS 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, SM
• Chrysler MS-12633
• Chrysler MS-10850
• Chrysler MS-10725
• Nissan GT-R®

Product Description
Protects Your Engine: AMSOIL Signature Series Synthetic Motor Oil provides outstanding anti-wear protection. It develops a strong fluid film that keeps metal surfaces separated while its robust anti-wear additives further reduce wear in metal-to-metal contact regions for maximum engine life. In the Sequence IIIG test, which is normally run for 100 hours, AMSOIL Signature Series Synthetic Motor Oil delivered outstanding wear protection for the camshaft and lifters, even after doubling the test interval to 200 hours. For details, see the Double-Length Sequence IIIG Engine Test Technical Study (G3320).

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
Signature Series Synthetic Motor Oil is designed to maximize energy efficiency for optimum 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.

Keeps Pistons Clean
Excess piston deposits can lead to pre-ignition and engine knocking, which results in lost power, reduced fuel economy and, in severe cases, engine damage. Signature Series' premium additives and naturally high resistance to extreme heat help keep pistons clean for maximum engine performance. After a double-length, 200-hour Sequence IIIG engine test, Signature Series demonstrated outstanding cleanliness properties and shattered the requirements of a 100-hour test.

Keeps Pistons Clean

Reduces Oil Consumption and Emissions
Volatility (burn-off) occurs when oil gets hot, causing high oil consumption and emissions. Signature Series resists volatility better than other oils, helping reduce 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 its 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
• Normal Service - Up to 25,000 miles, 700 hours of operation or one year, whichever comes first, in personal vehicles not operating under Severe Service.
• Severe Service - Up to 15,000 miles, 700 hours of operation or one year, whichever comes first.

Severe Service: Primarily short trips (less than 10 miles [16 km]); turbo/supercharged engines; commercial or fleet vehicles; excessive idling; first-time use of AMSOIL motor oil in a vehicle with more than 100,000 miles; frequent towing, hauling, plowing or driving in dusty conditions.

• Modified engines (non-stock) and those using E85 fuel are excluded from extended drain recommendations.
• Change at the vehicle manufacturer’s recommended drain interval outside U.S. and Canada.
• AMSOIL Ea® Full-Flow Oil Filters are designed for extended change intervals. With other brands, do not exceed six months or 10,000 miles unless longer intervals are recommended by the vehicle manufacturer.
• Check oil regularly to maintain proper fill levels.

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 AZF.

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

TYPICAL TECHNICAL PROPERTIES
AMSOIL Signature Series Synthetic 0W-40 Motor Oil (AZF)
Kinematic Viscosity @ 100°C, cSt (ASTM D445)14.8
Kinematic Viscosity @ 40°C, cSt (ASTM D445)85.7
Viscosity Index (ASTM D2270)181
CCS Viscosity, cP @ (°C) (ASTM D52935836 (-35)
Flash Point °C (°F) (ASTM D92)224 (435)
Fire Point °C (°F) (ASTM D92)248 (478)
Pour Point °C (°F) (ASTM D97)-51 (-60)
NOACK Volatility, % weight loss (g/100g) (ASTM D5800)8.1
High Temperature/High Shear Viscosity
@ 150°C, 1.0 X 106 s.-1), cP (ASTM D5481)
3.9
Four-Ball Wear Test @ 40 kgf, 75°C,
1200 rpm, 1 hr, scar diameter, mm (ASTM D4172)
0.35
Total Base Number (ASTM D2896)12.6

Did this product meet your expectations?

(click on a star to rate)
Product Name: SAE 0W-40 Signature Series 100% Synthetic Motor Oil (AZF)
Current Rating: 4.93 out of 5 stars
Total Votes: 15 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 Nic: space

I plan to buy again.

I have read on a number of websites and have heard over the years that Amsoil is the gold standard for motor oil. I finally registered for an account and am now using Amsoil Signature 0W-40 in my 2016 Ram 2500 6.4L 4x4. I switched to Amsoil at 500 miles and have just recently changed the oil again at 6000 miles. I have been getting reasonable mileage with my new truck (about 14.5 mpg average), considering I have the 6.4L and it's a 4x4. I recommend that if you plan to use Amsoil, to pay the small amount to become a Preferred Customer (currently $20 per year), because it will pay for itself in the savings per quart of oil (about $12.50 to $8.50 for the 0W-40 Signature Oil).

A quick story ... I turned a friend on to Amsoil, he started using 5W-30 Signature in his 2007 Nissan Quest with 60,000 miles. As early as the drive home from my house after changing the oil, his 15 year old son with a learner's permit could feel it running smoother and quieter, and now only one month later, he is already seeing 1-2 mpg increase in fuel economy. He plans to change his oil again at about 5000 miles and will then change it annually.

Item Reviewed: SAE 0W-40 Signature Series 100% Synthetic Motor Oil (AZF)

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 Homer: space

The HEMI has it.

I have been using AMSOIL for 19 years now and wouldn't use anything but. I use this new 0w40 in my 2015 Challenger SRT 392. And have been using it now over the 5w30 in my old 2004 Ram 5.7 HEMI that has 193,000 miles on it all with AMSOIL.
The truck is running totally on AMSOIL products bumper to bumper. The challenger soon will also be covered with AMSOIL, But for now, just the engine.
My motor home, Jeep, and two KTM dirt bikes as all run with AMSOIL.
AMSOIL just can't be beat. And all of their products can be trusted to have what you drive running at its best.
Thanks AMSOIL

Item Reviewed: SAE 0W-40 Signature Series 100% Synthetic Motor Oil (AZF)

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 Mack: space

OEM requirement

Spec. oil that is required for my SRT Jeep.

Item Reviewed: SAE 0W-40 Signature Series 100% Synthetic Motor Oil (AZF)

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 SRTcolin: space

Used in my DD SRT 8

I've used this in my daily driven SRT 8 for 10K miles, Blackstone oil sample came back with great results and they suggested I could go longer.

Item Reviewed: SAE 0W-40 Signature Series 100% Synthetic Motor Oil (AZF)

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 300: space

The only oil that I use in my 6.4 ram

OIL AND AMSOIL OIL FILTER SEEMS LIKE A GOOD COMBO. Everytime I do a oil change oil comes still looking good not dark black like other brands.

Item Reviewed: SAE 0W-40 Signature Series 100% Synthetic Motor Oil (AZF)

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

I would buy this oil again

I use it in my 392 hemi and love how it keeps the hemi smooth as butter

Item Reviewed: SAE 0W-40 Signature Series 100% Synthetic Motor Oil (AZF)

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 Dawg: space

The Best

I use this oil in my cars. This oil is the best I have ever used. My engine runs very quiet and I get better gas mileage using this oil. I will never use another oil. Amsoil signature series is fantastic. Thank you Amsoil!!

Item Reviewed: SAE 0W-40 Signature Series 100% Synthetic Motor Oil (AZF)

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 Kevin: space

I would buy again

Great stuff!

Item Reviewed: SAE 0W-40 Signature Series 100% Synthetic Motor Oil (AZF)

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 Sean: space

Best synthetic oil

I use this oil for my Dogde Ram 2500 with the 6.4 hemi. The new 6.4's that Chrysler has out now takes 0w-40 oil. There's very few oil manufactures that make 0w-40. Since my truck was brand new only used Amsoil and love it. Wouldn't run anything else. Put just under 7500 miles on oil before changing, was still clean and not broken down. If you own a 6.4 hemi I would run Amsoil.

Item Reviewed: SAE 0W-40 Signature Series 100% Synthetic Motor Oil (AZF)

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 Hemi guy: space

I will buy this product again

Second oil change coming up on my 2015 2500 dodge truck 392 hemi i'be used a lot of different oil a soil is the best by far

Item Reviewed: SAE 0W-40 Signature Series 100% Synthetic Motor Oil (AZF)

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 BootCampBob: space

Best Synthetic Oil Available

There are a lot of good synthetic engine oils on the market, but none better than Amsoil. I've been using it in all of my vehicles for seven years now, and haven't had any type of engine issues related to wear.
No, it's not the least expensive synthetic oil, but I don't "cheap out" when it comes to taking care of my cars. Only the best oil and filters for my machines. It's cheap insurance for my Hellcat.
There's really nothing more that needs to be said.

Item Reviewed: SAE 0W-40 Signature Series 100% Synthetic Motor Oil (AZF)

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

Its good stuff

Used in a 2015 Ram 2500, 6.4 Hemi. No tics,
Slightly better fuel economy.

Item Reviewed: SAE 0W-40 Signature Series 100% Synthetic Motor Oil (AZF)

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 No: space

Amsoil is great oil

I use amsoil in my hellcat it quite at my lifters and seems to add more smooth power

Item Reviewed: SAE 0W-40 Signature Series 100% Synthetic Motor Oil (AZF)
Share your AMSOIL Experience
by writing a review
smaller | bigger





Click Here to Report Problems Or Comments
3 Easy ways to place your order now!



Receive AMSOIL's Confidential Factory Direct Wholesale Price List in your email.
Enter your first name & email address and click on "eMail Price List" button!
AMSOIL Online Store
AMSOIL Preferred Customer Program. Save upto 25%!
Wholesale Business Accounts
Become an AMSOIL Dealer!
Request FREE AMSOIL Catalog
Questions? Please Contact us
Order AMSOIL By Phone
AMSOIL Online Store
Order AMSOIL By Fax
VISA and MASTERCARD is accepted for US and Canada.
Discover and American Express is accepted for US customers only
Go to Top