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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
    Best oil in the whole world
    By  FERNANDO,  a  Verified Buyer  from  El Paso Tx  on  May 28, 2026
    No oil compares to amsoil. I’ve tried Liqui moly royal purple but amsoil is my top choice from now on.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Signature Series Oil
    By  ROD,  a  Verified Buyer  from  Parksville BC  on  May 27, 2026
    Did an oil change in my 2017 Silverado using Amsoil for the first time. I was familiar with this product prior to the oil change, just got stuck in the convenience of a dealership doing it. That became costly and inconvenient. What I noticed right away was how much quieter and smoother the engines runs. My truck has a variable valve engine which I used to feel shifting from 4 cylinders to 8 cylinders and back again on OEM recommended oil used at a dealership. NO MORE….smooth in the transitions, starts better, quiet. Great oil ! Here to stay from now on !!
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Sad no oil filter
    By  WILL,  a  Verified Buyer  from  Amarillo   on  May 27, 2026
    Great product but went to order my usual, no oil filter when it arrived. No biggie so I called and talk to a young lady there and she told me they were out of oil filters the AMSOIL oil filter so I went to my nearest auto parts house and purchased an oil filter for my 2025 Toyota Tacoma and that’s the end of the story
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    A necessity for high mileage cars
    By  BoonevillePhil ,  a  Verified Buyer  from  Pennsylvania   on  May 25, 2026
    Every car I've had gets Amsoil on my 1st oil change. With me putting on 70+ miles a day on my vehicle, this gives me both long lasting protection and better gas mileage!
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Early opinion, not an honest review
    By  JULIAN,  a  Verified Buyer  from  FLORIDA  on  May 25, 2026
    We chose Amsoil after research and testimony about its ability to withstand elevated temperatures during stationary turbo cool down. It is not the best at this, but does everything else better than those oils that do exceed Amsoil at this. So Amsoil is an overall winner. We lab test our oil changes so the honest review will be in about 3000 miles.
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  • 5 star rating
    Best oil on the market..
    By  JEFFREY,  a  Verified Buyer  from  Silver Point TN  on  May 25, 2026
    I’ve used Amsoil products for 15 years in all my vehicles, side by sides, motorcycles and machines. Every one still running strong without issues. I love the fact that all can be purchased as complete kits through Amsoil.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    purchase of product
    By  DOUG,  a  Verified Buyer  on  May 24, 2026
    as always very pleased your product. Have been using it for years in race car and road cars
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Best lubrication available
    By  MARK,  a  Verified Buyer  from  Winnipeg  on  May 24, 2026
    Obviously not a sports or muscle car, but I simply want the best lubrication and filtration available for my 2018 Honda Civic LX 1.5L Turbo and long engine life. The known fuel dilution issue with this engine is another reason for my choice of AMSOIL Signature Series 0W20 for my vehicle. I have also settled on WIX XP as my oil filter of choice.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Oil change
    By  BILL,  a  Verified Buyer  from  OH  on  May 24, 2026
    Cheap insurance. I go to 50% oil life or 6to7 months. Best oil and filter you can buy.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    New oil
    By  RICHARD,  a  Verified Buyer  from  Lake Havasu, Arizona   on  May 23, 2026
    I'm trying this oil after some research and switching from vavoline restore and protect. Not that it was a bad oil ,I cleaned my engine with it and then went with amsoil for the superior protection and extended oil change intervals. So far got 700 miles and still clean .I'm going to change at 7500.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    The best
    By  PAUL,  a  Verified Buyer  from  Greer SC  on  May 22, 2026
    Because of Larry Perry's recommendation of Amsoil, I will never put any other oil in my car.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Best oil
    By  JEREMIAH,  a  Verified Buyer  on  May 22, 2026
    My truck runs much better now that I’ve switched to this oil. I changed it about 3 weeks ago and I can tell a big difference. Looking forward to seeing how it runs after a few months
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Best kept secret
    By  DogFace,  a  Verified Buyer  from  AR  on  May 22, 2026
    This oil has been without a doubt the best Ive ever used in a motor. My 2025 Wrangler 2.0L Turbo was very noisy from the factory. After an oil change using Amsoil my motor has never run smoother and quieter than it does now.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Best product on the market
    By  MICHELE,  a  Verified Buyer  from  Durham, Maine  on  May 22, 2026
    My husband was an Amsoil user for many products before his death and was totally convinced that Amsoil was the best product to use. He used their oil in all his equipment, truck, car, yard tractor and snowblower. He would always recommend it to everyone he knew. Since he has been gone, I have picked up on his recommendations and I would never use anything but Amsoil oil.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Nothing better than Amsoil for my 2011 toyota yaris.
    By  MARK,  a  Verified Buyer  on  May 21, 2026
    This is the oil I hope to use for the life of my car.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Happy GM 5.3 V8
    By  BRADLEY,  a  Verified Buyer  from  Cocoa Florida   on  May 21, 2026
    Amsoil is the best motor oil you can put in your car or truck. I have never had issues with this motor oil and even when I do go 5000 miles between changes the oil looks almost like it’s brand new. A motor oil may cost a little more, but believe me in the end your engine will thank you.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Made the change
    By  JOSE,  a  Verified Buyer  from  High Sierra, California   on  May 20, 2026
    Made the change 2 years ago and haven't used any other brand of oil since. My truck seems to like Amsoil and the performance is excellent. I can wholeheartedly say I will only use Amsoil in the future, as long as they keep the quality and care in their products. Their oil change kit is so convenient and considerate, they send you literally everything you need to do the job. And it's little things like that, that shows the care and pride that they have in their products. And that is something that I appreciate and respect. Every product I've tried or used from Amsoil is top tier. Definitely a company I can stand beside.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Protection
    By  Pogo,  a  Verified Buyer  from  Florida  on  May 19, 2026
    Amazing oil for your investment!
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  • 5 star rating
    Great oil
    By  DANIEL,  a  Verified Buyer  from  NY  on  May 18, 2026
    Been using this for years great oil. Never failed me
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Can't go wrong!
    By  WOODY,  a  Verified Buyer  from  TX  on  May 15, 2026
    Been using this oil ever since 2020, and have used it on other cars as well. It has served me well, as I send my oil in for analysis, and it always comes back positive! I use this oil in the winter here, so it warms up quicker, but in the hot summers I use a little a thicker oil...same brand!
    Bottom Line
    Yes, I would recommend this to a friend.
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