NEW AMSOIL Preferred Customer Program

Signature Series 0W-20 Synthetic Motor OilHelp

The Next Generation in Motor Oil Technology

Signature Series 0W-20 Synthetic Motor Oil Product Image
Click image to enlarge
$12.15 Retail Price (USD)
Package Size:
Unit of Measure:
QTY:
Product Code: ASMQT-EA
Product Highlights View Full Description

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-20 (ASM): API SN (Resource Conserving), SM…; ILSAC GF-5, GF-4…; ACEA A1/B1; GM dexos1™ (supersedes 6094M) Fortified with detergents that exceed dexos1 sulfated ash specifications; Chrysler MS-6395; Ford WSS-M2C947-A

*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.

ASM Package Sizes
Code Package Size Unit of Measure Product
ASMQT (ASMQT-EA) Quart Each Signature Series 0W-20 Synthetic Motor Oil
ASMQT (ASMQT-CA) Quart Case of 12 Signature Series 0W-20 Synthetic Motor Oil
ASM1G (ASM1G-EA) Gallon Each Signature Series 0W-20 Synthetic Motor Oil
ASM1G (ASM1G-CA) Gallon Case of 4 Signature Series 0W-20 Synthetic Motor Oil
ASM30 (ASM30-EA) 30-Gallon Drum Each Signature Series 0W-20 Synthetic Motor Oil
ASM55 (ASM55-EA) 55-Gallon Drum Each Signature Series 0W-20 Synthetic Motor Oil
More about AMSOIL Reviews

REVIEW SNAPSHOT®

by PowerReviews
AMSOILSignature Series 5W-30 Synthetic Motor Oil
 
4.9

(based on 196 reviews)

Ratings Distribution

  • 5 Stars

     

    (189)

  • 4 Stars

     

    (5)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (1)

  • 1 Stars

     

    (1)

98%

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

 

Piece of mind

I travel a lot every week. I usually drive over a thousand miles each week so I don't need to be getting ripped off in quick change places. I don't really keep track of...Read complete review

I travel a lot every week. I usually drive over a thousand miles each week so I don't need to be getting ripped off in quick change places. I don't really keep track of how many miles I go in between changes any more and I've had no engine issue that relate to wear. This product performs as advertised.

VS

Most Liked Negative Review

 

GMC 2009 sierra

I ran this oil on the 15,000 mile program because I'm on the gas pretty heavy at times. The first cycle went well, but the next cycle I pulled my trailer a lot and...Read complete review

I ran this oil on the 15,000 mile program because I'm on the gas pretty heavy at times. The first cycle went well, but the next cycle I pulled my trailer a lot and the oil was history at 6,000. Truck also had lifter tick at start up when motor was already at running temp. Went back to conventional oil and lifter tick was gone.

Reviewed by 196 customers

Displaying reviews 1-10

Back to top

Previous | Next »

 
5.0

First time running Amsoil

By 

from New Waterford Ohio

Verified Buyer

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

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.

  • How would you describe yourself?:
  • I'm a full-on gearhead
  • What kind of vehicle/equipment do you have?:
  • Chevy Cruze
 
5.0

Would use no other oil.

By 

from Ruskin, Fl

Verified Buyer

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

I have been using Amsoil in three of my vehicles now. One I sold with about 280k miles and it did not use any oil. As soon as I got my new car home I change out the factory oil to Amsoil. I have a Jeep Wangler that I put a performance Chevy 350 in., 340 hp 390 ft lb torque. I have had over heating problems with it and have driven it all day with temps over 230. The oil did not cook and I still don't use oil, I've put over 60k on this engine using the Z Rod oil.

  • How would you describe yourself?:
  • I'm a DIY handyman
  • What kind of vehicle/equipment do you have?:
  • Hundy Accent, 91 Jeep Wrangler with 350
 
5.0

Great oroduct and I will definitely purchase more

By 

from Cantonment, FL

Verified Buyer

Comments about Signature Series 5W-50 Synthetic Motor Oil:

I use this oil in my vehicle because it meets my manufacturer''s specifications. Also, I noticed after about a hundred or so miles that a nuicanse tick went away.

  • How would you describe yourself?:
  • I'm a full-on gearhead
  • What kind of vehicle/equipment do you have?:
  • 2012 Ford Mustang Boss 302
 
5.0

Why use any other plain oil, I have used Amsoil since 1976.

By 

from Clinton County, MO.

Verified Buyer

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

I use this product 0w20 because any vehicle I drive is an investment, and I keep my vehicles in very good condition.

  • How would you describe yourself?:
  • I'm a DIY handyman
  • What kind of vehicle/equipment do you have?:
  • Just two cars
 
5.0

Great product

By 

from Venture CA

Verified Buyer

Comments about Signature Series 0W-30 Synthetic Motor Oil:

The 0-30 works well in my old Dodge and I plan on using it from now on.

  • How would you describe yourself?:
  • I'm a DIY handyman
  • What kind of vehicle/equipment do you have?:
  • 06 Dodge Stratus

(1 of 2 customers found this review helpful)

 
5.0

Great Product! Time order more,

By 

from Foristell, MO

Verified Buyer

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

2010 Ford Explorer and soon to be 2015 Chevrolet Silverado. I do have other gas powered items, lawn tractor, edger, tiller, etc. I really need to convert them over as I have had nothing but great results with your product.

  • How would you describe yourself?:
  • I'm a DIY handyman
  • What kind of vehicle/equipment do you have?:
  • Noted above

(2 of 4 customers found this review helpful)

 
5.0

Great product

By 

from Metro detroit, michigan

Verified Buyer

Comments about Signature Series 5W-50 Synthetic Motor Oil:

Put it in my track camaro, 2013 SS 1LE, last year april so 2015. Had about 4 track day HPDEs then car stored for 6 winter months, metro detroit michigan, unheated garage. Took car out this april did 2 veeery hard track days on same oil, hit 300f on oil with average around 295F for 6 20 minute sessions.... Total now 3500miles for a year on amsoil filter. Sent for lab analysis to blackstine labs oil was in great conditions no issues. Put another 8 in the ls3!!!

  • Was this a gift?:
  • No
  • How would you describe yourself?:
  • I love my vehicles / toys
  • What kind of vehicle/equipment do you have?:
  • 2013 camaro SS 1LE
 
5.0

Have been an AMSOIL Customer for several years

By 

from Swanton, Ohio

Verified Buyer

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

Have used AMSOIL oils and filters for several years now. Can tell a difference just by loooking at the oile when changing. Other oils when drained show wear by the dark color. With AMSOIL it looks like it could go a few more thousand miles.

  • Was this a gift?:
  • No
  • How would you describe yourself?:
  • I'm a DIY handyman
  • What kind of vehicle/equipment do you have?:
  • Ford F150XLT

(1 of 1 customers found this review helpful)

 
5.0

Its the only thing i run in my 2012 boss 302.

By 

from Dothan Alabama

Verified Buyer

Comments about Signature Series 5W-50 Synthetic Motor Oil:

I have swapped all 3 vehicles to amsoil SS motor oil

  • Was this a gift?:
  • No
  • How would you describe yourself?:
  • I love my vehicles / toys
  • What kind of vehicle/equipment do you have?:
  • 444 hp Factory Boss 302

(1 of 1 customers found this review helpful)

 
5.0

Best synthetic oil

By 

from Detroit MI

Verified Buyer

Comments about Signature Series 0W-40 Synthetic Motor 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.

  • Was this a gift?:
  • No
  • How would you describe yourself?:
  • I'm a professional mechanic
  • What kind of vehicle/equipment do you have?:
  • 2015 Ram 2500

Displaying reviews 1-10

Back to top

Previous | Next »