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AMSOIL Signature Series 5W-20 100% Synthetic Motor Oil

Product code : ALMQT-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-20 100% Synthetic Motor Oil

5 star rating Based on 6,861 reviews
  • 5 star rating
    Peace of mind
    By  SJ,  a  Verified Buyer  from  Southwest Florida  on  August 09, 2025
    Delivered fast. Packaged neat. Used the funnel it came with. Now I have the peace of mind knowing I’m running the best that’s available for my truck.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Amsoil oil
    By  DAVID,  a  Verified Buyer  from  Ohio   on  August 09, 2025
    I have several vehicles and always use amsoil. I have a car with 300000 miles. Amsoil since new, can’t even hear the engine run it’s so quiet! That says it all!!
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Excellent
    By  JIM,  a  Verified Buyer  on  August 09, 2025
    I wouldn't use anything else!
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Simply the best if your a performance minded guy.
    By  MANUEL,  a  Verified Buyer  from  MA  on  August 09, 2025
    Simply the best.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Boosted 2023 coyote
    By  JASON,  a  Verified Buyer  from  Florida  on  August 09, 2025
    Best oil on the market
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Great oil
    By  DAVID,  a  Verified Buyer  from  Arizona  on  August 09, 2025
    I have been using this oil in my Jeep Grand Cherokee since it was new, 97,000 mi later still runs great.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Great Oil
    By  CASEY,  a  Verified Buyer  from  TX  on  August 08, 2025
    I only use AMSOIL products in all my vehicles. All I can say is if I put 6 qts in 5000 miles later I get 6 qts out. No other oil I have used does that
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Backorder item
    By  SCOTT,  a  Verified Buyer  from  Texas  on  August 06, 2025
    Took a little extra time to get the gallon jug, but I guess that means they sell enough that it's hard to keep on the shelves
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    AMSOIL IS THE BEST!!!
    By  NATHAN,  a  Verified Buyer  on  August 06, 2025
    I just recently switch to amsoil for all of my fluids and I absolutely love them and I can tell my truck does too!!!!
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Product review
    By  BRENT,  a  Verified Buyer  on  August 05, 2025
    From all my research AMSOIL is the best period when it comes to oil. I will use it from now until I die for all my vehicles.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Best oil
    By  MALZONE,  a  Verified Buyer  from  Cal City   on  August 04, 2025
    Best oil on the market change it every year on my 2014 Silverado Crew Cab LTZ 28,890 original miles
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Great oil
    By  MALZONE,  a  Verified Buyer  from  Cal City   on  August 04, 2025
    Same as before
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  • 5 star rating
    Tundra oil, I use.
    By  MYLES,  a  Verified Buyer  from  Ardrossan, AB  on  August 04, 2025
    I use this light oil in my Tundra 4.6L engine, and it seems to work well. Being 100% synthetic oil, really boosts my confidence in using this in my Tundra.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Amsoil 5w30 100% synthetic oil
    By  MYLES,  a  Verified Buyer  from  Ardrossan, AB  on  August 04, 2025
    I have used this oil since 1998, and have been using the bypass filter system as well, with great success! My cars always rust out before the engine wears out. Two of my cars have had just under 600,000 kilometers and the engines run like new. They always start great, run great. Too bad the body rust destroys the cars. Winter sure is hard on cars.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Quality justifies the price
    By  LEONARD,  a  Verified Buyer  from  NC  on  August 04, 2025
    I’m using AMSOIL for two years now and I’m happy with the oil quality and filters. Unfortunately many times they’re out of stock on filters but we try to work it out. Other than that is a great brand
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Great products
    By  BRUCE,  a  Verified Buyer  from  S. California  on  August 04, 2025
    Best lubrication products ever. I use Amsoil in all my track and cars. I changed my oil at 1,000 miles in my new RAM RHO with the Amsoil Synthetic oil, runs great.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Good stuff
    By  BROOK,  a  Verified Buyer  on  August 04, 2025
    Have never had a motor issue in anything I've ran amsoil in .
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Full synthetic
    By  PHIL,  a  Verified Buyer  on  August 04, 2025
    I have been using Amsoil full synthetic for years and it has proven to be a superior product
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    2017 Toyota Tundra
    By  Zach,  a  Verified Buyer  from  Illinois   on  August 03, 2025
    Amsoil is top notch oil. I will be no means stretch it to what they say it last but will be very confident for the 3k-5k that it's in the truck.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Best oil for my c8 ..
    By  COREY,  a  Verified Buyer  from  Saginaw Texas   on  August 03, 2025
    My c8 requires the best OW-40 oil and this is it..amsoil is pure synthetic and that’s what I wanted.. I change every 5000 miles. I don’t have any issues,it’s the only oil I’ll ever use.runs cooler,saves battery life.
    Bottom Line
    Yes, I would recommend this to a friend.
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