About this item

• Product Overview
  Compare Motor Oil

  Compare Motor Oil

  

  	Signature Series	Extended-Life (XL)	High-Mileage	Hybrid	OE
  Wear Protection
  Engine Cleanliness
  Service Interval
  Extreme Temp Performance
  Corrosion Protection
  Oil-Consumption Control
  Viscosity Control
  Leak Protection
  Severe-Service Protection

  View Full Image

  Engineered for enthusiasts seeking maximum protection and performance. Precision-formulated with cutting-edge technology and a longstanding devotion to making the world’s best motor oil. The result: engine protection that blows the doors off the highest industry standards.

  See the Product Data Bulletin for full details.

• Technical Specifications
  Data Bulletin

  Data Bulletins

  Warranty

  WARRANTY

  SDS

  SDS

  
  
  
• Product Reviews
  5 star rating

  Based on 7,105 reviews

  Based on 7,105 reviews

  See all customer reviews

  Sort by

  Most Recent Most Helpful Highest Rating Lowest Rating Oldest

  • 5 star rating
    THE BEST
    By  RICK,  a  Verified Buyer  from  Eastern Arizona  on  September 15, 2026

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    Amsoil signature is the best oil money can buy.
    Bottom Line

    Yes, I would recommend this to a friend.
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  • 5 star rating
    Long Service Life
    By  WAYNE,  a  Verified Buyer  from  Lloydminster, Alberta  on  September 14, 2026

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    I'm not one to trade up frequently in my vehicles. With the price of new vehicles skyrocketing every year, I look after my vehicles to ensure long trouble free motoring. I did my research and test after test, Amsoil products came out on top. We own a 2017 Kia Soul EX and a 2018 Dodge Grand Caravan Crew Plus. I switched over to Amsoil a few years ago. I do my own oil and filter changes so I know it's done correctly. Startups are quick and quiet and I've noted an increase in fuel mileage. Nothing dramatic, 1-2 decrease in Li/100km. Magnetic oil pan plugs on both vehicles are clean at oil change time. The Dodge runs highway trips and the Kia is mainly our in town car. I service the Dodge between 10 -12 thousand kms and the Kia at 7,000 kms. Amsoil oil filters are installed at every service and both are metal free when inspected. Yes, it is more money but I truly believe that Amsoil is a superior product.
    Bottom Line

    Yes, I would recommend this to a friend.
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    YES (0) NO (0)
  • 5 star rating
    Amsoil 0-20
    By  ROBERT,  a  Verified Buyer  from  West point ms  on  September 11, 2026

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    I use amsoil signature series in my bmw suv it provides excellent performance on a 10000 mile service interval, this is the best money can buy no doubt about it, I would recommend it to anyone
    Bottom Line

    Yes, I would recommend this to a friend.
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  • 5 star rating
    The best
    By  BALRAM,  a  Verified Buyer  from  Mississauga  on  September 11, 2026

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    Can not go back to any other make of Oil. This is the best.
    Bottom Line

    Yes, I would recommend this to a friend.
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  • 5 star rating
    Best Engine Oil one can get.
    By  BALRAM,  a  Verified Buyer  from  Mississauga  on  September 11, 2026

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    I have been using Amsoil for past 10 years in all my and my friend's vehicles. And can vouch by it.
    Bottom Line

    Yes, I would recommend this to a friend.
    Was this review helpful?

    YES (0) NO (0)
  • 5 star rating
    300,000 Miles and Counting
    By  MICHEAL,  a  Verified Buyer  from  Phoenix  on  September 11, 2026

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    This is keeping my old 2012 hemi ram running like new. 300,000 and counting -
    Bottom Line

    Yes, I would recommend this to a friend.
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  • 5 star rating
    Best oil ever
    By  DANNY,  a  Verified Buyer  from  Arizona   on  September 11, 2026

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    I am very happy with amsoil. I think it's the best oil I've ever used. And really excited that my local auto parts store carries it now.
    Bottom Line

    Yes, I would recommend this to a friend.
    Was this review helpful?

    YES (0) NO (0)
  • 5 star rating
    Noticeable results
    By  JOHN,  a  Verified Buyer  from  Canada  on  September 10, 2026

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    I choose Amsoil after reading reviews from other people. My first purchase was for my HD motorcycle. Reason for Amsoil over HD oil, HD has one oil for engine/transmission and primary drive, I do not agree that one oil can cover three components. Amsoil offers separate oil for each component which mirrors my belief of separate oils. I am totally pleased with my decision to use Amsoil, engine, transmission and primary are all operating much better. I made a second purchase for my Subaru Forester; oil not changed to date but will be in the near future. I found it very easy to place my order and delivery time is amazing.
    Bottom Line

    Yes, I would recommend this to a friend.
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    YES (0) NO (0)
  • 5 star rating
    Incredible engine protection
    By  SCOTT,  a  Verified Buyer  from  Minnesota  on  September 10, 2026

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    This oil protects and extends engine life like no other I have used. My 2023 Genesis is exactly three years old with 190,000 miles on it. Runs like new. My prior rides including a 2011 Hyundai Elantra (I purchased new) spanned over 425,000 miles without a single engine repair. The best protection for long life... Amsoil Signature grade oils
    Bottom Line

    Yes, I would recommend this to a friend.
    Was this review helpful?

    YES (0) NO (0)
  • 5 star rating
    Good Stuff
    By  CHRISTOPHER,  a  Verified Buyer  from  Omaha  on  September 10, 2026

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    Using this gives me confidence that my engine is protected over traditional motor oils.
    Bottom Line

    Yes, I would recommend this to a friend.
    Was this review helpful?

    YES (0) NO (0)

• Highlights

  A New Level of Motor Oil Technology

  • 75% more engine protection against horsepower loss and wear.¹
  • 50% more cleaning power vs. AMSOIL OE Motor Oil
  • Protects turbochargers 72% better than required² by the GM dexos1 Gen 2 specification.
  • 28% more acid-neutralizing power than Mobil 1.³
  • Trusted by professional engine builders
  • Guaranteed protection for up to 25,000 miles or 1 year

  ¹Based on independent testing of AMSOIL Signature Series 0W-20 using the ASTM D6891 standard test.
  ²Based on independent testing of AMSOIL Signature Series 5W-30 in the GM turbo coking test.
  ³Based upon independent testing of Mobil 1 Annual Protection Full Synthetic 5W-30 and AMSOIL Signature Series 5W-30 in ASTM D2896. Oils purchased in July 2020.

• Returns

  We offer easy returns for customers. If your product is unused and unopened, you may return it within 30 days for a full refund of the purchase price. View full AMSOIL Return Policy.

• Payments

  We accept Visa, Mastercard, American Express, Discover and PayPal, and provide secure checkout and encrypted payment processing.

• Product Overview
  Compare Motor Oil

  Compare Motor Oil

  

  	Signature Series	Extended-Life (XL)	High-Mileage	Hybrid	OE
  Wear Protection
  Engine Cleanliness
  Service Interval
  Extreme Temp Performance
  Corrosion Protection
  Oil-Consumption Control
  Viscosity Control
  Leak Protection
  Severe-Service Protection

  View Full Image

  Engineered for enthusiasts seeking maximum protection and performance. Precision-formulated with cutting-edge technology and a longstanding devotion to making the world’s best motor oil. The result: engine protection that blows the doors off the highest industry standards.

  See the Product Data Bulletin for full details.

• Technical Specifications
  Data Bulletin

  Data Bulletins

  Warranty

  WARRANTY

  SDS

  SDS

  
  
  
• Product Reviews
  5 star rating

  Based on 7,105 reviews

  Based on 7,105 reviews

  See all customer reviews

  Sort by

  Most Recent Most Helpful Highest Rating Lowest Rating Oldest

  • 5 star rating
    THE BEST
    By  RICK,  a  Verified Buyer  from  Eastern Arizona  on  September 15, 2026

    Open report issue form

    Describe the issue

    Failed to verify captcha

    Cancel Submit
    Amsoil signature is the best oil money can buy.
    Bottom Line

    Yes, I would recommend this to a friend.
    Was this review helpful?

    YES (0) NO (0)
  • 5 star rating
    Long Service Life
    By  WAYNE,  a  Verified Buyer  from  Lloydminster, Alberta  on  September 14, 2026

    Open report issue form

    Describe the issue

    Failed to verify captcha

    Cancel Submit
    I'm not one to trade up frequently in my vehicles. With the price of new vehicles skyrocketing every year, I look after my vehicles to ensure long trouble free motoring. I did my research and test after test, Amsoil products came out on top. We own a 2017 Kia Soul EX and a 2018 Dodge Grand Caravan Crew Plus. I switched over to Amsoil a few years ago. I do my own oil and filter changes so I know it's done correctly. Startups are quick and quiet and I've noted an increase in fuel mileage. Nothing dramatic, 1-2 decrease in Li/100km. Magnetic oil pan plugs on both vehicles are clean at oil change time. The Dodge runs highway trips and the Kia is mainly our in town car. I service the Dodge between 10 -12 thousand kms and the Kia at 7,000 kms. Amsoil oil filters are installed at every service and both are metal free when inspected. Yes, it is more money but I truly believe that Amsoil is a superior product.
    Bottom Line

    Yes, I would recommend this to a friend.
    Was this review helpful?

    YES (0) NO (0)
  • 5 star rating
    Amsoil 0-20
    By  ROBERT,  a  Verified Buyer  from  West point ms  on  September 11, 2026

    Open report issue form

    Describe the issue

    Failed to verify captcha

    Cancel Submit
    I use amsoil signature series in my bmw suv it provides excellent performance on a 10000 mile service interval, this is the best money can buy no doubt about it, I would recommend it to anyone
    Bottom Line

    Yes, I would recommend this to a friend.
    Was this review helpful?

    YES (0) NO (0)
  • 5 star rating
    The best
    By  BALRAM,  a  Verified Buyer  from  Mississauga  on  September 11, 2026

    Open report issue form

    Describe the issue

    Failed to verify captcha

    Cancel Submit
    Can not go back to any other make of Oil. This is the best.
    Bottom Line

    Yes, I would recommend this to a friend.
    Was this review helpful?

    YES (0) NO (0)
  • 5 star rating
    Best Engine Oil one can get.
    By  BALRAM,  a  Verified Buyer  from  Mississauga  on  September 11, 2026

    Open report issue form

    Describe the issue

    Failed to verify captcha

    Cancel Submit
    I have been using Amsoil for past 10 years in all my and my friend's vehicles. And can vouch by it.
    Bottom Line

    Yes, I would recommend this to a friend.
    Was this review helpful?

    YES (0) NO (0)
  • 5 star rating
    300,000 Miles and Counting
    By  MICHEAL,  a  Verified Buyer  from  Phoenix  on  September 11, 2026

    Open report issue form

    Describe the issue

    Failed to verify captcha

    Cancel Submit
    This is keeping my old 2012 hemi ram running like new. 300,000 and counting -
    Bottom Line

    Yes, I would recommend this to a friend.
    Was this review helpful?

    YES (0) NO (0)
  • 5 star rating
    Best oil ever
    By  DANNY,  a  Verified Buyer  from  Arizona   on  September 11, 2026

    Open report issue form

    Describe the issue

    Failed to verify captcha

    Cancel Submit
    I am very happy with amsoil. I think it's the best oil I've ever used. And really excited that my local auto parts store carries it now.
    Bottom Line

    Yes, I would recommend this to a friend.
    Was this review helpful?

    YES (0) NO (0)
  • 5 star rating
    Noticeable results
    By  JOHN,  a  Verified Buyer  from  Canada  on  September 10, 2026

    Open report issue form

    Describe the issue

    Failed to verify captcha

    Cancel Submit
    I choose Amsoil after reading reviews from other people. My first purchase was for my HD motorcycle. Reason for Amsoil over HD oil, HD has one oil for engine/transmission and primary drive, I do not agree that one oil can cover three components. Amsoil offers separate oil for each component which mirrors my belief of separate oils. I am totally pleased with my decision to use Amsoil, engine, transmission and primary are all operating much better. I made a second purchase for my Subaru Forester; oil not changed to date but will be in the near future. I found it very easy to place my order and delivery time is amazing.
    Bottom Line

    Yes, I would recommend this to a friend.
    Was this review helpful?

    YES (0) NO (0)
  • 5 star rating
    Incredible engine protection
    By  SCOTT,  a  Verified Buyer  from  Minnesota  on  September 10, 2026

    Open report issue form

    Describe the issue

    Failed to verify captcha

    Cancel Submit
    This oil protects and extends engine life like no other I have used. My 2023 Genesis is exactly three years old with 190,000 miles on it. Runs like new. My prior rides including a 2011 Hyundai Elantra (I purchased new) spanned over 425,000 miles without a single engine repair. The best protection for long life... Amsoil Signature grade oils
    Bottom Line

    Yes, I would recommend this to a friend.
    Was this review helpful?

    YES (0) NO (0)
  • 5 star rating
    Good Stuff
    By  CHRISTOPHER,  a  Verified Buyer  from  Omaha  on  September 10, 2026

    Open report issue form

    Describe the issue

    Failed to verify captcha

    Cancel Submit
    Using this gives me confidence that my engine is protected over traditional motor oils.
    Bottom Line

    Yes, I would recommend this to a friend.
    Was this review helpful?

    YES (0) NO (0)