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• 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 7,139 reviews

  Based on 7,139 reviews

  See all customer reviews

  Sort by

  Most Recent Most Helpful Highest Rating Lowest Rating Oldest

  • 4 star rating
    Highly recommended
    By  DAVID,  a  Verified Buyer  from  Virginia   on  September 28, 2026

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    Can’t beat amsoil. Just wish it was sold locally
    Bottom Line

    Yes, I would recommend this to a friend.
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  • 5 star rating
    My only company is that it doesn’t come in a 5 quart bottle
    By  THOMAS,  a  Verified Buyer  from  Tomball, Texas  on  September 28, 2026

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    My 2025 forester takes 4.6 quarts of this super thin oil, my only complaint is that I can not get it in a 5 quart bottle.
    Bottom Line

    Yes, I would recommend this to a friend.
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    YES (0) NO (0)
  • 5 star rating
    Awesomeness
    By  JUSTIN,  a  Verified Buyer  from  Haslet Texas  on  September 28, 2026

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    I use Amsoil Signature Series in all my vehicles and I believe it is why they are all well over 100k miles and one is over 300k and still running strong. Best fluids out there in my opinion.
    Bottom Line

    Yes, I would recommend this to a friend.
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    YES (0) NO (0)
  • 5 star rating
    First time user
    By  PHIL,  a  Verified Buyer  from  Idaho  on  September 27, 2026

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    We just bought a new Lincoln Aviator with a 3.0 twin turbo. I've always been told AMSOIL is the best. I did it's first oil change at 2400 miles with a WIX filter. I plan on an interval of 5-7 thousand miles depending on my cross country trips. So, I guess we'll just have to wait and see how it goes.
    Bottom Line

    Yes, I would recommend this to a friend.
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  • 5 star rating
    My choice for my vehicle
    By  JOHN,  a  Verified Buyer  from  Hartland, WI  on  September 27, 2026

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    I have used your oil for several years with no issues. With the chaos in the oil markets and the collapse of the Fram parent company thru financial criminality I am glad that I still use it.
    Bottom Line

    Yes, I would recommend this to a friend.
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  • 5 star rating
    regular oil change for a newer car
    By  Chris,  a  Verified Buyer  on  September 27, 2026

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    I run this on my 23 camry every 5k miles and have had zero issues and no sludge build up. she is sitting at just shy of 50k miles now and i plan to keep using amsoil for as long as i own the car
    Bottom Line

    Yes, I would recommend this to a friend.
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  • 5 star rating
    Quality products
    By  ERIC,  a  Verified Buyer  from  Wichita, KS  on  September 26, 2026

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    Amsoil products are all that I will use
    Bottom Line

    Yes, I would recommend this to a friend.
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  • 5 star rating
    Great oil
    By  THOMAS,  a  Verified Buyer  from  Montana  on  September 26, 2026

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    Great oil, I believe it's great for my high mileage Lexus GX470.
    Bottom Line

    Yes, I would recommend this to a friend.
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  • 5 star rating
    Better shifting
    By  CHUNG,  a  Verified Buyer  from  Rogers AR 72756  on  September 26, 2026

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    Best oil in my opinion....after changing amsoil transmission oil ...my Tundra shifting better than factory
    Bottom Line

    Yes, I would recommend this to a friend.
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  • 5 star rating
    The only choice!
    By  NICHOLAS,  a  Verified Buyer  from  Rhode Island  on  September 25, 2026

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    Been using this oil on my 2020 tundra since 25k now at 137,000. 2013 jeep compass and 2025 jeep compass. I have not had a single car or truck run better on anything else noise or performance wise.
    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

  Warranty

  WARRANTY

  SDS

  SDS

  
  
  
• Product Reviews
  5 star rating

  Based on 7,139 reviews

  Based on 7,139 reviews

  See all customer reviews

  Sort by

  Most Recent Most Helpful Highest Rating Lowest Rating Oldest

  • 4 star rating
    Highly recommended
    By  DAVID,  a  Verified Buyer  from  Virginia   on  September 28, 2026

    Open report issue form

    Describe the issue

    Failed to verify captcha

    Cancel Submit
    Can’t beat amsoil. Just wish it was sold locally
    Bottom Line

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

    YES (0) NO (0)
  • 5 star rating
    My only company is that it doesn’t come in a 5 quart bottle
    By  THOMAS,  a  Verified Buyer  from  Tomball, Texas  on  September 28, 2026

    Open report issue form

    Describe the issue

    Failed to verify captcha

    Cancel Submit
    My 2025 forester takes 4.6 quarts of this super thin oil, my only complaint is that I can not get it in a 5 quart bottle.
    Bottom Line

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

    YES (0) NO (0)
  • 5 star rating
    Awesomeness
    By  JUSTIN,  a  Verified Buyer  from  Haslet Texas  on  September 28, 2026

    Open report issue form

    Describe the issue

    Failed to verify captcha

    Cancel Submit
    I use Amsoil Signature Series in all my vehicles and I believe it is why they are all well over 100k miles and one is over 300k and still running strong. Best fluids out there in my opinion.
    Bottom Line

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

    YES (0) NO (0)
  • 5 star rating
    First time user
    By  PHIL,  a  Verified Buyer  from  Idaho  on  September 27, 2026

    Open report issue form

    Describe the issue

    Failed to verify captcha

    Cancel Submit
    We just bought a new Lincoln Aviator with a 3.0 twin turbo. I've always been told AMSOIL is the best. I did it's first oil change at 2400 miles with a WIX filter. I plan on an interval of 5-7 thousand miles depending on my cross country trips. So, I guess we'll just have to wait and see how it goes.
    Bottom Line

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

    YES (0) NO (0)
  • 5 star rating
    My choice for my vehicle
    By  JOHN,  a  Verified Buyer  from  Hartland, WI  on  September 27, 2026

    Open report issue form

    Describe the issue

    Failed to verify captcha

    Cancel Submit
    I have used your oil for several years with no issues. With the chaos in the oil markets and the collapse of the Fram parent company thru financial criminality I am glad that I still use it.
    Bottom Line

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

    YES (0) NO (0)
  • 5 star rating
    regular oil change for a newer car
    By  Chris,  a  Verified Buyer  on  September 27, 2026

    Open report issue form

    Describe the issue

    Failed to verify captcha

    Cancel Submit
    I run this on my 23 camry every 5k miles and have had zero issues and no sludge build up. she is sitting at just shy of 50k miles now and i plan to keep using amsoil for as long as i own the car
    Bottom Line

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

    YES (0) NO (0)
  • 5 star rating
    Quality products
    By  ERIC,  a  Verified Buyer  from  Wichita, KS  on  September 26, 2026

    Open report issue form

    Describe the issue

    Failed to verify captcha

    Cancel Submit
    Amsoil products are all that I will use
    Bottom Line

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

    YES (0) NO (0)
  • 5 star rating
    Great oil
    By  THOMAS,  a  Verified Buyer  from  Montana  on  September 26, 2026

    Open report issue form

    Describe the issue

    Failed to verify captcha

    Cancel Submit
    Great oil, I believe it's great for my high mileage Lexus GX470.
    Bottom Line

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

    YES (0) NO (0)
  • 5 star rating
    Better shifting
    By  CHUNG,  a  Verified Buyer  from  Rogers AR 72756  on  September 26, 2026

    Open report issue form

    Describe the issue

    Failed to verify captcha

    Cancel Submit
    Best oil in my opinion....after changing amsoil transmission oil ...my Tundra shifting better than factory
    Bottom Line

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

    YES (0) NO (0)
  • 5 star rating
    The only choice!
    By  NICHOLAS,  a  Verified Buyer  from  Rhode Island  on  September 25, 2026

    Open report issue form

    Describe the issue

    Failed to verify captcha

    Cancel Submit
    Been using this oil on my 2020 tundra since 25k now at 137,000. 2013 jeep compass and 2025 jeep compass. I have not had a single car or truck run better on anything else noise or performance wise.
    Bottom Line

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

    YES (0) NO (0)