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Signature Series 5W-30 Synthetic Motor OilHelp

The Next Generation in Motor Oil Technology

Signature Series 5W-30 Synthetic Motor Oil Product Image
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$12.05 Retail Price (USD)
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Product Code: ASLQT-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:

5W-30 (ASL): API SN (Resource Conserving), SM…; ILSAC GF-5, GF-4…; ACEA A5/B5, A1/B1; Honda HTO-06; Ford WSS-M2C946-A, WSS-M2C929-A; Chrysler MS-6395; GM dexos1™ (supersedes LL-A-025, 6094M and 4718M) Fortified with detergents that exceed dexos1™ sulfated ash specifications.

*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.

ASL Package Sizes
Code Package Size Unit of Measure Product
ASLQT (ASLQT-EA) Quart Each Signature Series 5W-30 Synthetic Motor Oil
ASLQT (ASLQT-CA) Quart Case of 12 Signature Series 5W-30 Synthetic Motor Oil
ASL1G (ASL1G-EA) Gallon Each Signature Series 5W-30 Synthetic Motor Oil
ASL1G (ASL1G-CA) Gallon Case of 4 Signature Series 5W-30 Synthetic Motor Oil
ASL30 (ASL30-EA) 30-Gallon Drum Each Signature Series 5W-30 Synthetic Motor Oil
ASL55 (ASL55-EA) 55-Gallon Drum Each Signature Series 5W-30 Synthetic Motor Oil
ASL27 (ASL27-EA) 275-Gallon Tote Each Signature Series 5W-30 Synthetic Motor Oil
More about AMSOIL Reviews

REVIEW SNAPSHOT®

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

(based on 592 reviews)

Ratings Distribution

  • 5 Stars

     

    (571)

  • 4 Stars

     

    (17)

  • 3 Stars

     

    (1)

  • 2 Stars

     

    (1)

  • 1 Stars

     

    (2)

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

 

Metal wear noted at 217 hours of use

Stopped using AMSOIL due to metal wear. The engine have never shown metal wear in testing with previous oils of different brands. The oil also changed viscosity and lost about 1/2 quart. ...Read complete review

Stopped using AMSOIL due to metal wear. The engine have never shown metal wear in testing with previous oils of different brands. The oil also changed viscosity and lost about 1/2 quart. I have a similar engine identical and 10K builds separate the two vehicles. I do not recommend 0W20 signature oil for use in city driving conditions.

Reviewed by 592 customers

Displaying reviews 1-10

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5.0

5w-20

By 

from montana

Verified Buyer

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

Great product, excellent service

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

Just as described

By 

from Johnson City, TN

Verified Buyer

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

I've been using this in all my vehicles since 2010, I'll never use anything else again. I do yearly changes and even after being in the motor for that amount of time it still has a bit of color.

  • How would you describe yourself?:
  • I love my vehicles / toys
  • What kind of vehicle/equipment do you have?:
  • CHEVY
 
5.0

I would buy this oil again.

By 

from Calgary,Canada

Verified Buyer

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

I change oil every 30000 km and the old oil still thick and greasy.My van is about 180000 km and still like new.

  • How would you describe yourself?:
  • I love my vehicles / toys
  • What kind of vehicle/equipment do you have?:
  • toyota Siena 2015
 
5.0

Exclusively use AMSOIL all vehicles

By 

from Houston, Tx

Verified Buyer

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

Have used AMSOIL exclusively for 15 years in my vehicles. Have never had an oil related issue.
This oil is especially good in my F150 eco boost engine. Smooth, quiet, economical performance.
Best of the best!!

  • How would you describe yourself?:
  • I love my vehicles / toys
  • What kind of vehicle/equipment do you have?:
  • Cars & trucks
 
5.0

Exclusively use amsoil

By 

from Houston, Tx

Verified Buyer

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

Have used AMSOIL for 15 years. Never had an oil related issue in any vehicle. Best of the best!!

  • How would you describe yourself?:
  • I love my vehicles / toys
  • What kind of vehicle/equipment do you have?:
  • Cars&trucks
 
5.0

Long term use & I keep coming back

By 

from Winchester VA

Verified Buyer

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

My car has 140k miles and I've been changing my ea amsoil filter every 10k miles (rated for 15k miles) and my oil in my vehicle every 20k miles (rated for 25k miles) without fail. Excellent results and cheaper in the long run when compared to other conventional products.

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

I love Amsoil, have been using it forever

By 

from PA

Verified Buyer

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

Every auto I buy, Amsoil goes in along with their filters....

  • How would you describe yourself?:
  • I love my vehicles / toys
  • What kind of vehicle/equipment do you have?:
  • Honda
 
5.0

0W-20

By 

from Marana, Az

Verified Buyer

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

Excellent products! Just bought a 2017 Subaru Outback. Used Amsoil 0-20W and Amsoil Oil Filter. Long time consumer.
Great stuff. Run in all of our family cars

  • How would you describe yourself?:
  • I love my vehicles / toys
  • What kind of vehicle/equipment do you have?:
  • Cars, truck
 
5.0

I'll buy more next year.

By 

from Newnan, ga.

Verified Buyer

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

Good value for 12 month protection.

  • How would you describe yourself?:
  • I'm a DIY handyman
  • What kind of vehicle/equipment do you have?:
  • 2006 mustang.
 
5.0

I'll buy more next year.

By 

from Newnan, ga.

Verified Buyer

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

Good value, once a year protection.

  • How would you describe yourself?:
  • I'm a DIY handyman
  • What kind of vehicle/equipment do you have?:
  • 2010 Lincoln Town Car

Displaying reviews 1-10

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