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 (English)

  Data Bulletins (Français)

  Warranty

  WARRANTY

  SDS

  SDS

  SDS (French)

  
  
  

• Product Reviews

  5 star rating

  Based on 7,237 reviews

  Based on 7,237 reviews

  See all customer reviews

  Sort by

  Most Recent Most Helpful Highest Rating Lowest Rating Oldest

  • 5 star rating
    Amsoil in my opinion is very good
    By  DANIEL,  a  Verified Buyer  on  November 10, 2026

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    Awesome product
    Bottom Line

    Yes, I would recommend this to a friend.
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  • 5 star rating
    Good Oil
    By  MARK,  a  Verified Buyer  from  Fallon, NV  on  November 09, 2026

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    Great oil for my Honda Accord.
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  • 5 star rating
    Reduce oil consumption
    By  Dad,  a  Verified Buyer  on  November 09, 2026

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    I use this on a high mileage Matrix, works awesome i don have to refill as before these cars are known for oil consumption
    Bottom Line

    Yes, I would recommend this to a friend.
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  • 5 star rating
    Keeps your car running smoothe
    By  BRIAN,  a  Verified Buyer  from  Florida  on  November 09, 2026

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    Amsoil Signature Series is always in our crankcase. The engine is so quiet and smoothe. You look into the oil filler and it's so clean you can eat off it. The only oil we use!
    Bottom Line

    Yes, I would recommend this to a friend.
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  • 5 star rating
    Great product.
    By  TRAVIS,  a  Verified Buyer  from  Connecticut  on  November 09, 2026

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    Great product!! I will only use this for the built motor in my STI.
    Bottom Line

    Yes, I would recommend this to a friend.
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  • 5 star rating
    Keeps my Ford running
    By  DAVID,  a  Verified Buyer  from  Lancaster South Carolina  on  November 09, 2026

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    I have a 2011 Ford and have been using Amsoil for years. I bought and operated this car in Minnesota for some years before moving south. I am getting the mileage rated for the car as new. When I change the oil and filter it looks clean and the car doesn't use oil.
    Bottom Line

    Yes, I would recommend this to a friend.
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  • 5 star rating
    Oil analysis proof
    By  MIKE,  a  Verified Buyer  on  November 08, 2026

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    Oil analysis proves Oil still well within spec at 12k.
    Bottom Line

    Yes, I would recommend this to a friend.
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  • 5 star rating
    First time using
    By  JOSHUA,  a  Verified Buyer  from  North Augusta SC  on  November 08, 2026

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    Used on my wife’s Honda crv and we love it! Motor runs super quiet now and can’t wait to see how it holds up to the previous oil that was in it.
    Bottom Line

    Yes, I would recommend this to a friend.
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  • 5 star rating
    Great product
    By  PATRICK,  a  Verified Buyer  from  Phoenix, Az  on  November 07, 2026

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    It is the only oil I choose to use in my Ram 2500. Wish it was available at my local auto parts store (would probably be more expensive, but worth it) but that's besides the point. I've heard lots of recommendations from mechanics on the interwebs that swear by it and that's what originally drew me to your product. Keep up the good work. I will not use anything else in my truck!
    Bottom Line

    Yes, I would recommend this to a friend.
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  • 5 star rating
    THE oil for GM v-8s
    By  MATTHEW,  a  Verified Buyer  from  North Carolina  on  November 06, 2026

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    Perfect oil for ALL GM V-8s in our area. No problems with lifters, main bearings, or rod bearings and maintains the Amsoil quality you know from them.
    Bottom Line

    Yes, I would recommend this to a friend.
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• 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 (English)

  Data Bulletins (Français)

  Warranty

  WARRANTY

  SDS

  SDS

  SDS (French)

  
  
  

• Product Reviews

  5 star rating

  Based on 7,237 reviews

  Based on 7,237 reviews

  See all customer reviews

  Sort by

  Most Recent Most Helpful Highest Rating Lowest Rating Oldest

  • 5 star rating
    Amsoil in my opinion is very good
    By  DANIEL,  a  Verified Buyer  on  November 10, 2026

    Open report issue form

    Describe the issue

    Failed to verify captcha

    Cancel Submit
    Awesome product
    Bottom Line

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

    YES (0) NO (0)
  • 5 star rating
    Good Oil
    By  MARK,  a  Verified Buyer  from  Fallon, NV  on  November 09, 2026

    Open report issue form

    Describe the issue

    Failed to verify captcha

    Cancel Submit
    Great oil for my Honda Accord.
    Was this review helpful?

    YES (0) NO (0)
  • 5 star rating
    Reduce oil consumption
    By  Dad,  a  Verified Buyer  on  November 09, 2026

    Open report issue form

    Describe the issue

    Failed to verify captcha

    Cancel Submit
    I use this on a high mileage Matrix, works awesome i don have to refill as before these cars are known for oil consumption
    Bottom Line

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

    YES (0) NO (0)
  • 5 star rating
    Keeps your car running smoothe
    By  BRIAN,  a  Verified Buyer  from  Florida  on  November 09, 2026

    Open report issue form

    Describe the issue

    Failed to verify captcha

    Cancel Submit
    Amsoil Signature Series is always in our crankcase. The engine is so quiet and smoothe. You look into the oil filler and it's so clean you can eat off it. The only oil we use!
    Bottom Line

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

    YES (0) NO (0)
  • 5 star rating
    Great product.
    By  TRAVIS,  a  Verified Buyer  from  Connecticut  on  November 09, 2026

    Open report issue form

    Describe the issue

    Failed to verify captcha

    Cancel Submit
    Great product!! I will only use this for the built motor in my STI.
    Bottom Line

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

    YES (0) NO (0)
  • 5 star rating
    Keeps my Ford running
    By  DAVID,  a  Verified Buyer  from  Lancaster South Carolina  on  November 09, 2026

    Open report issue form

    Describe the issue

    Failed to verify captcha

    Cancel Submit
    I have a 2011 Ford and have been using Amsoil for years. I bought and operated this car in Minnesota for some years before moving south. I am getting the mileage rated for the car as new. When I change the oil and filter it looks clean and the car doesn't use oil.
    Bottom Line

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

    YES (0) NO (0)
  • 5 star rating
    Oil analysis proof
    By  MIKE,  a  Verified Buyer  on  November 08, 2026

    Open report issue form

    Describe the issue

    Failed to verify captcha

    Cancel Submit
    Oil analysis proves Oil still well within spec at 12k.
    Bottom Line

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

    YES (1) NO (0)
  • 5 star rating
    First time using
    By  JOSHUA,  a  Verified Buyer  from  North Augusta SC  on  November 08, 2026

    Open report issue form

    Describe the issue

    Failed to verify captcha

    Cancel Submit
    Used on my wife’s Honda crv and we love it! Motor runs super quiet now and can’t wait to see how it holds up to the previous oil that was in it.
    Bottom Line

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

    YES (0) NO (0)
  • 5 star rating
    Great product
    By  PATRICK,  a  Verified Buyer  from  Phoenix, Az  on  November 07, 2026

    Open report issue form

    Describe the issue

    Failed to verify captcha

    Cancel Submit
    It is the only oil I choose to use in my Ram 2500. Wish it was available at my local auto parts store (would probably be more expensive, but worth it) but that's besides the point. I've heard lots of recommendations from mechanics on the interwebs that swear by it and that's what originally drew me to your product. Keep up the good work. I will not use anything else in my truck!
    Bottom Line

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

    YES (0) NO (0)
  • 5 star rating
    THE oil for GM v-8s
    By  MATTHEW,  a  Verified Buyer  from  North Carolina  on  November 06, 2026

    Open report issue form

    Describe the issue

    Failed to verify captcha

    Cancel Submit
    Perfect oil for ALL GM V-8s in our area. No problems with lifters, main bearings, or rod bearings and maintains the Amsoil quality you know from them.
    Bottom Line

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

    YES (0) NO (0)