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AMSOIL Signature Series 5W-30 100% Synthetic Motor Oil

Product code : ASLQT-EA

5 star rating Read 6,863 reviews

Customer Rating

5

90% would recommend

  • 5 6679
  • 4 130
  • 3 24
  • 2 9
  • 1 21

AMSOIL Signature Series 5W-30 100% Synthetic Motor Oil

5 star rating Based on 6,863 reviews
  • 5 star rating
    synthetic 5w50
    By  BENJAMIN,  a  Verified Buyer  from  Kansas  on  January 23, 2023
    factory oil for my car is Ford's synthetic 5w50 but I have always run Amsoil in this vehicle and it has never let me down. Everything seems better than running stock oil on my car and with it being a performance turbo car it definitely makes a difference.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    amsoil 0w-20
    By  KEVIN,  a  Verified Buyer  from  Cave Creek, Arizona  on  January 22, 2023
    Simply the best oil out there for my 150k Toyota Tundra. Runs like new.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Only the best for my cars
    By  RICHARD,  a  Verified Buyer  from  Detroit   on  January 22, 2023
    Vehicles are to expensive to go cheap on the most important thing you put into it.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    596,000 BRUTAL MILES Cadillac XTS
    By  STEPHEN,  a  Verified Buyer  from  Boston, Mass  on  January 21, 2023
    I run a car service in Boston. 2014 Cadillac XTS Livery Sedan went 596,000 miles, PLUS EIGHT YEARS IDLE TIME. I have picture of the odometer. Hard, high RPM driving. What a product!!
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    The G.O.A.T.
    By  DAVID,  a  Verified Buyer  from  Florida   on  January 20, 2023
    If you love your car, use Amsoil to protect your baby’s engine.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Lube
    By  DAVID,  a  Verified Buyer  from  Florida   on  January 20, 2023
    Extreme engine protection
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Awesome product
    By  ANDY,  a  Verified Buyer  from  North Carolina  on  January 20, 2023
    Great product, highly recommend!
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Sig Series Synthetic
    By  MICHAEL,  a  Verified Buyer  from  Ohio  on  January 20, 2023
    Best performing synthetic oil. Been using this in my Vette for many years. Noticeable reduction in heat, smooth running and protection at all RPM ‘s. So impressed that I started running it in my Pick Up and my SUV a couple of years back.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Perfection
    By  DAVID,  a  Verified Buyer  from  Texas  on  January 19, 2023
    I say it’s the best ever and if you don’t trust me you have to trust Gale Banks.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Synthetic Oil
    By  MIGUEL,  a  Verified Buyer  from  FL  on  January 17, 2023
    With the oil my car work good and my savings is more than 50%.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Still looked clean after 10,000 miles
    By  Steve,  a  Verified Buyer  from  Austin, TX  on  January 17, 2023
    After a year and 10,000 miles, this oil still looked great! The additional cost is negligible compared to the longer operating time and piece of mind knowing my engine is getting top tier lubrication and wear protection.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Oil # 1
    By  KEVIN,  a  Verified Buyer  on  January 17, 2023
    Thanks Amsoil for such a wonderful oil ..
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    The absolute best
    By  JOHN,  a  Verified Buyer  from  Clifton nj  on  January 16, 2023
    Have used this oil ever since my truck was new 2019 ford f150 never a problem and engine runs asume even has a recall for cam fader and my friend is a service manager told keep using this oil and don’t do the recall I will be fine I am a fleet mechanic and don’t fix what is not broken will use the oil for the life of my truck thanks
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Better economy, nicer cold starts
    By  EVAN,  a  Verified Buyer  from  BC, Canada  on  January 16, 2023
    Happy to be back on Amsoil with a new to me truck. Following an engine flush and the installation of Signature Series 0W20, the fuel economy is noticeably better and the engine sounds much better in the morning at cold starts. Not a placebo, I took the time to listen to the difference before and after. Moving on to a coolant change and transmission fluid now with Amsoil and see where that goes!
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Top notch motor oil
    By  STEVE,  a  Verified Buyer  from  Texas  on  January 16, 2023
    I'm presently running this oil in 5 different vehicles, the 5-20 and 5-30 versions in 3 others, and the 15-40 in 2 diesel trucks. My '08 Ram 5.7 has 332,000 miles on it. This truck pulls trailers, hauls load, and general every day driving. The oil pressure gauge sets on 55-60 lbs. All but a couple of the vehicles have in excess of 200,000 miles, all on factory engines. NEED I SAY MORE??
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 4 star rating
    The Good and not so good
    By  SIDNEY,  a  Verified Buyer  from  Colorado Springs  on  January 16, 2023
    I think and hear from everyone else that the oil and filter are the best around for your car. But, still don't get complacent, change your oil when due. I have asked several questions via the web site. I never get an answer. It doesn't work. It should be taken off the site or have someone actually answer the questions.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Ams oil
    By  OSCAR,  a  Verified Buyer  from  Arizona  on  January 15, 2023
    Great product!
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    6.4 hemi
    By  CODY,  a  Verified Buyer  on  January 14, 2023
    Good oil for my 2021 6.4 hemi 2500 will definitely be buying more!
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    2019 ram
    By  Jacob,  a  Verified Buyer  from  TX  on  January 14, 2023
    Great oil use in all my vehicles transmission and engine even the differentials
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Shelby GT350 AMSOIL Review
    By  JOSEPH,  a  Verified Buyer  from  Grain Valley MO  on  January 14, 2023
    Amazon roll is a great product a reduces friction and handles the power from my pro charged Shelby GT 350 perfectly I will continue to use this oil on going.
    Bottom Line
    Yes, I would recommend this to a friend.
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