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AMSOIL Signature Series 5W-50 100% Synthetic Motor Oil

Product code : AMRQT-EA

5 star rating Read 6,861 reviews

Customer Rating

5

90% would recommend

  • 5 6677
  • 4 130
  • 3 24
  • 2 9
  • 1 21

AMSOIL Signature Series 5W-50 100% Synthetic Motor Oil

5 star rating Based on 6,861 reviews
  • 5 star rating
    Signature series
    By  DON,  a  Verified Buyer  on  December 12, 2025
    Great oil … probably one of the best I’ve ever used…
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Amsoil
    By  DOUGLAS,  a  Verified Buyer  from  Washington  on  December 11, 2025
    I will only use Amsoil products.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Great oil
    By  BRANDON,  a  Verified Buyer  from  MO  on  December 11, 2025
    I switched my car to amsoil based the recommendation from a fellow mechanic that I work with.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Only the best for my 2022 Camaro SS 1LE
    By  ALVIN,  a  Verified Buyer  from  Tracy, CA  on  December 11, 2025
    Switched from Mobile 1 Supercar 0W-40 and never looked back. This stuff is the best on the market. It comes out on top against all competitors in testing for a reason!
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Best motor oil made
    By  RJ,  a  Verified Buyer  from  SoCal  on  December 11, 2025
    Superior protection, motor runs smoother with Amsoil. Stays cleaner than other oils used.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Love This Motor Oil
    By  Island Jim,  a  Verified Buyer  from  WA  on  December 11, 2025
    I've been using this Signature motor oil now for a couple of years in my 2003 Ford Explorer & my 1999 Lexus ES300. Both cars running great.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Great quality oil for my truck
    By  JOHN,  a  Verified Buyer  from  Long Island New York   on  December 10, 2025
    Great oil for all my vehicles,I have a GMC Sierra that has the cylinder deactivation and I want to do everything I can not to have any issues. I only do about a thousand miles a year and I change my oil every year with my inspection I use 0w20 in my pickup and 5w20 in my Cadillac never having to add oil between changes very happy with amsoil products
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    The best oil in the world
    By  RICKY,  a  Verified Buyer  from  San Diego  on  December 10, 2025
    Impossible to beat…PERIOD
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    AMSOIL Signature Oil
    By  DAVID,  a  Verified Buyer  on  December 08, 2025
    I’ve continue to use AMSOIL Signature oil in all of my vehicles! It exceeds all my expectations. What a fantastic product!
    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  Florida   on  December 08, 2025
    Used this product since the van was new. 210,000 miles later still doesn’t use a drop of oil between oil changes.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    only thing i trust
    By  GARY,  a  Verified Buyer  from  Virginia  on  December 08, 2025
    only oil and oil products i trust to put in my wifes car
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Go with the best
    By  ROBERT,  a  Verified Buyer  from  TN  on  December 08, 2025
    The extended drain interval makes it affordable. I would not do an extended drain interval with any other brand. Amsoil is the only lubricant my mechanic recommends because he has seen it all after 40 years of servicing everything mechanical. He is somewhat retired but still gives advice via a radio program. He warns against the inadequate lubrication car manufacturers are selling with lighter weight oil. He recommends Amsoil 0w30 to replace anything that is thinner. Works for me...
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Amsoil Motor oil
    By  JAMES,  a  Verified Buyer  on  December 07, 2025
    Best oil you can buy
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  • 5 star rating
    Great stuff
    By  JEFF ,  a  Verified Buyer  from  Fl  on  December 07, 2025
    Two things, what ever that first thing is and Amsoil, it only cost you money by NOT using it!! Final answer. I use it for everything I own including my Harley. Thanks for your greatness 🙏👍
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Oil
    By  RAFAEL,  a  Verified Buyer  on  December 07, 2025
    The best oil you will find
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Oil
    By  RAFAEL,  a  Verified Buyer  on  December 07, 2025
    Best oil in the market.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    0-40 for C7 Grand Sport
    By  Dave ,  a  Verified Buyer  from  New Hampshire   on  December 06, 2025
    Was using GM recommended oil in C7 Grand Sport noticed oil pressure drop off during hot track days friend uses and recommend Amsoil although late in season ran 2 more track days oil pressure remained steady did not drop off as much
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    A+
    By  ALLEN,  a  Verified Buyer  on  December 06, 2025
    A+
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Oil
    By  RAFAEL,  a  Verified Buyer  on  December 06, 2025
    Best oil i recommend
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    First time
    By  Jose,  a  Verified Buyer  from  Naples   on  December 05, 2025
    It’s my first time using this oil , and I hope the best performance for my truck, I’m driving 2024 Titan sv
    Bottom Line
    Yes, I would recommend this to a friend.
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