AMSOIL Signature Series 0W-40 Synthetic Motor Oil
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Signature Series 0W-40 Synthetic Motor OilHelp

A New Level of Motor Oil Technology

Signature Series 0W-40 Synthetic Motor Oil Product Image
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$12.45 Retail Price (USD)
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Product Code: AZFQT-EA
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AMSOIL Signature Series Synthetic Motor Oil is engineered to outperform conventional and synthetic motor oils. It combines industry-premier synthetic technology with AMSOIL premium additives in a unique formulation that exceeds the higher performance demands of modern engines. Signature Series delivers the performance and value upon which the AMSOIL reputation is built. The culmination of more than 40 years of expertise, its exclusive formulation raises the bar for motor oil performance.

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.

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 industry-standard Sequence IIIG Engine Test, AMSOIL Signature Series Synthetic Motor Oil delivered 75 percent more engine protection against horsepower loss and wear than required by a leading industry standard.** For details, see the Double-Length Sequence IIIG Engine Test Technical Study (G3320).

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.

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 is designed to deliver outstanding engine protection, cleanliness and performance over extended drain intervals. It reduces vehicle maintenance and waste oil.

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. Signature Series prevents piston deposits 93 percent better than required to meet the latest API standard.**

Sequence IIIG

Excels in Extreme Temperatures
Signature Series resists thermal (heat) breakdown better than conventional and synthetic motor oils. It is heavily fortified with detergent and dispersant additives to help prevent sludge deposits and keep engines clean. Unlike conventional oils, Signature Series contains no wax, staying fluid in sub-zero temperatures for easier starting, improved oil flow and reduced wear.

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.

APPLICATIONS
AMSOIL Signature Series Synthetic Motor Oil is excellent for use in all types of gasoline-fueled passenger cars and light trucks. It is recommended for all domestic and foreign vehicles requiring any of the following performance specifications:

0W-40 (AZF): API SN, SM…; Chrysler MS-12633, MS-10725, MS-10850; Nissan GT-R®

*All trademarked names and images 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. All products advertised here are AMSOIL-engineered for use in the applications shown.

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.

AMSOIL PRODUCT WARRANTY
AMSOIL products are backed by a Limited Liability Warranty. For complete information visit www.amsoil.com/warranty.aspx.

HEALTH & SAFETY
This product is not expected to cause health concerns when used for the intended application and according to the recommendations in the Safety Data Sheet (SDS). An SDS is available via the Internet at www.amsoil.com or upon request at (715) 392-7101. Keep Out of Reach of Children. Don’t pollute. Return used oil to collection centers.

For warranty information, visit www.amsoil.com/warranty.aspx.

AZF Package Sizes
Code Package Size Unit of Measure Product
AZFQT (AZFQT-EA) Quart Each Signature Series 0W-40 Synthetic Motor Oil
AZFQT (AZFQT-CA) Quart Case of 12 Signature Series 0W-40 Synthetic Motor Oil
AZF55 (AZF55-EA) 55-Gallon Drum Each Signature Series 0W-40 Synthetic Motor Oil
More about AMSOIL Reviews

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by PowerReviews
AMSOILSignature Series 5W-20 Synthetic Motor Oil
 
4.9

(based on 807 reviews)

Ratings Distribution

  • 5 Stars

     

    (779)

  • 4 Stars

     

    (21)

  • 3 Stars

     

    (2)

  • 2 Stars

     

    (2)

  • 1 Stars

     

    (3)

99%

of respondents would recommend this to a friend.

Pros

No Pros

Cons

No Cons

Best Uses

No Best Uses
    • Was this a gift?:
    • No (4)

Most Liked Positive Review

 

First time running Amsoil

I changed to amsoil from gm dexos as I wanted something better for my Cruze. After 10k of running dexos as it was included with the car, I switched to amsoil and immediately noticed...Read complete review

I changed to amsoil from gm dexos as I wanted something better for my Cruze. After 10k of running dexos as it was included with the car, I switched to amsoil and immediately noticed the engine running quieter than with dexos. I am happy with the change so far and am looking forward to see how it holds up as I only have 1500 miles on it so far. We'll see what happens when I get into my second oil change.

VS

Most Liked Negative Review

 

Not worth the hoops you have to jump through

The oil is good, but with the membership fee and high shipping costs I am going back to Mobile 1 as I did not see much if any of a difference. There is just...Read complete review

The oil is good, but with the membership fee and high shipping costs I am going back to Mobile 1 as I did not see much if any of a difference. There is just to many hoops they make you jump through. There should just be a cost to buy it and no membership fee that AMS Oil makes people think they are locked in to buying oil from them so they can "get the most of the membership". I think most people find annoying and just go buy another oil rather than pay high prices on top of shipping and also a fee just to buy it at a reasonable price.

Reviewed by 807 customers

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5.0

Would purchase again

By 

from Montrose, Colorado

Verified Buyer

Comments about Signature Series 5W-20 Synthetic Motor Oil:

Went to the 6mo. oil change ( 2) time and the oil after 6 months still looks clean.

  • How would you describe yourself?:
  • I love my vehicles / toys
  • What kind of vehicle/equipment do you have?:
  • Ford F-150, Toyota Highlander, Sears pro
 
5.0

My go to oil manufacturer.

By 

from Stafford, VA

Verified Buyer

Comments about Signature Series 5W-20 Synthetic Motor Oil:

I don't have any technical information, but I'm happy with the performance and mileage I'm getting in my Silverdado with a combined highway and stop and go daily commute.

  • How would you describe yourself?:
  • I'm a DIY handyman
  • What kind of vehicle/equipment do you have?:
  • vehicles, snowblower, 2 cycle, 4 cycle
 
5.0

My go to oil for everything.

By 

from Stafford, VA

Verified Buyer

Comments about Signature Series 0W-20 Synthetic Motor Oil:

I don't have any technical information, but I'm happy with the performance and mileage I'm getting in my Silverdado with a combined highway and stop and go daily commute.

  • How would you describe yourself?:
  • I'm a DIY handyman
  • What kind of vehicle/equipment do you have?:
  • A truck, a SUV, lawnmower, snowblowers
 
5.0

I will buy this product again.

By 

from Miami, OK

Verified Buyer

Comments about Signature Series 5W-30 Synthetic Motor Oil:

When I first started using Amsoil Signature Series motor oil I noticed that the engine ran smoother and fuel mileage improved by 1 mpg. Great product will use in my vehicles from now on.

  • How would you describe yourself?:
  • I love my vehicles / toys
 
5.0

awesome product as well as customer relations

By 

from Edmonton,Ab.

Verified Buyer

Comments about Signature Series 0W-20 Synthetic Motor Oil:

Expect the best out of my vehicles, therefore only use the best oils

  • How would you describe yourself?:
  • I love my vehicles / toys
  • What kind of vehicle/equipment do you have?:
  • Boats,motorcycles,and numerous vehicles
 
5.0

Awesome oil for turbocharged vehicles

By 

from Seattle, WA

Verified Buyer

Comments about Signature Series 5W-30 Synthetic Motor Oil:

Used it in multiple vehicles over the years, some being highly modified turbocharged cars. Latest betting LNF powered 2.0 K04 turbocharged Cobalt SS, HHR, and Pontiac Solstice 2.4L with aftermarket turbo kit. All of these ecotecs loved 5W-30 Signature Series and run way smoother than on OEM recommended Mobil 1 stuff.

  • How would you describe yourself?:
  • I'm a DIY handyman
 
5.0

This rocks!

By 

from Seattle, WA

Verified Buyer

Comments about Signature Series 10W-30 Synthetic Motor Oil:

Use this for our 2009 VW Routan SEL Premium with 4.0L, and the van loves it! We have taken it up and down west coast numerous times without an issue!

  • How would you describe yourself?:
  • I'm a DIY handyman
 
5.0

The best rest assured!

By 

from MN

Verified Buyer

Comments about Signature Series 5W-20 Synthetic Motor Oil:

Total reliability. Better fuel economy, cleaner engine, longer mechanical life. One higher priced change per year, but only one per year. Best product guarantee in the industry!

  • How would you describe yourself?:
  • I'm a DIY handyman
  • What kind of vehicle/equipment do you have?:
  • 04 F150 FX4 5.4 L, 2012 Toyota Camry Le
 
5.0

it's all I use

By 

from Connecticut

Verified Buyer

Comments about Signature Series 10W-30 Synthetic Motor Oil:

I have used only AMSoil since 1982, best I have ever used.

  • How would you describe yourself?:
  • I'm a DIY handyman
  • What kind of vehicle/equipment do you have?:
  • 2004 Impala SS, 2003 GMC Envoy
 
5.0

Been great through the years

By 

from Northeast

Verified Buyer

Comments about Signature Series 0W-20 Synthetic Motor Oil:

I've been using this in my vehicles for years and it's always proved valuable! I notice quieter engines, improved fuel economy, and better protection. Had it analyzed in several types of engines and driving conditions and it's been an outstanding performer. Other oils do not keep the quality and consistency over the years like this does. It's the first thing I do too any new vehicle I get.

  • How would you describe yourself?:
  • I love my vehicles / toys
  • What kind of vehicle/equipment do you have?:
  • Tundra, sienna

Displaying reviews 1-10

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