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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
    Acura TL
    By  LOUIS,  a  Verified Buyer  on  June 03, 2026
    Just put it in and will see how it is. Was recommended by a YouTube content creator.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    AMSOIL Signature Series 0W-20 100% Synthetic Motor Oil
    By  BRIAN K.,  a  Verified Buyer  from  Texas  on  June 02, 2026
    Been using this oil since 2012 , never had any problems or oil consumption.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Excellent as always
    By  ISRAEL,  a  Verified Buyer  on  June 02, 2026
    Excellent as always
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Awesome product
    By  JOE,  a  Verified Buyer  from  El Paso Texas   on  June 02, 2026
    This product worked amazing on my 2017 Dodge charger Scat pack I would highly recommend it.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Jeep and Subaru likes it
    By  JUSTIN,  a  Verified Buyer  from  Calgary AB  on  June 02, 2026
    I switched from the 0w-20 on a Jeep 3.6 and Subaru 2.4l turbo last fall, both motors sound quieter on start-up and when the oil is at max temp. I have seen no reduced MPG after making the change. On the Subaru turbo motor, the oil temps under higher boost/loads are 3-4C cooler and on the 3.6l it has a couple more PSI of oil pressure during low speed high load off road conditions.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    The best
    By  GD,  a  Verified Buyer  on  June 02, 2026
    I've been using Amsoil since 2001. It's the best oil!
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Kia upgrade
    By  Bramirez408,  a  Verified Buyer  from  Tracy   on  June 01, 2026
    My daily was being used with other synthetic oil brands and was always giving us a sowing sound but that was with 5w20 and now we are border line close to 200k miles and after switching to 5W30 we noticed a big difference especially in the mornings!
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Upgrading oil
    By  Bramirez408,  a  Verified Buyer  from  Tracy   on  June 01, 2026
    I was using 5W20 from what my manufacturer recommends but was told it would be better to run 5w-50 for my 15 Mustang 5.0 and it makes sense since I drive my car like I stole it !💯😎😈 lol but was definitely worth the investment since I do track it several times a year and holds up pretty damn well in the heat and during high revving
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Great oil
    By  JAMES,  a  Verified Buyer  from  Michigan  on  June 01, 2026
    Have been running this oil in two Pentastar 3.6 liter engines. Now over 150k miles on both. No problems. Both run quiet and smooth.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Great so far in my new Ram 1500 w/3.0 liter Hurricane
    By  MIKE,  a  Verified Buyer  from  WA ST  on  May 31, 2026
    Just bought a new 2026 RAM w/3.0 liter Twin turbo engine. Truck runs smooth as butter and oil temps when towing are excellent! Love Amsoil!
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    2020 Silverado
    By  JEREMY,  a  Verified Buyer  from  Michigan  on  May 31, 2026
    Been running AMS oil since the day the truck was borne. Lets see how well it does I have 90k on the truck now without a tic. I've never had a machine that runs AMS it's whole life fail mechanically.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Amazing Product
    By  OSCAR,  a  Verified Buyer  from  Michigan  on  May 30, 2026
    I can already hear a huge difference in my engine.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    excellent as usual
    By  STEPHEN,  a  Verified Buyer  from  Seymour, TN  on  May 30, 2026
    A great product as usual. I am slowly swapping all my vehicle fluids to Amsoil.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Ultimate Protection
    By  BRETT,  a  Verified Buyer  from  Texas  on  May 30, 2026
    When Toyota posted a bulletin about using different oil in hotter climates and conditions. I immediately went from 0-20 to 5-30 signature series oil right after that was posted. New Tacoma 4-Cylinder Turbo engine runs quieter. Next thing I do is change the rear differential and front differential with severe gear series fluid. Great products I use their gun cleaner and gun oils too. Awesome stuff
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Best Oil on the market
    By  SCOTT,  a  Verified Buyer  on  May 30, 2026
    I have used this for over 20 years and love it.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    K5 still alive?
    By  TRAVIS,  a  Verified Buyer  from  Pittsburgh pa   on  May 29, 2026
    Brand new Kia K5 GT nothing but the best for her, with the help of amsoil this car will be arounf forever gonna break the kia stigma, lol thanks for the best oil ever amsoil ily 😘
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Great product
    By  CORAL,  a  Verified Buyer  on  May 29, 2026
    I use amsoil in all of my vehicles. I feel that is why I obtain high mileage with little or no major maintenance problems. My 2003 Chevy truck now has 347,000 miles with no engine teardowns. It still runs like a top. My 2023 Envision with only 47,500miles I had oil change recently. I expect high milage on it also. It's not just synthetic, it has to be amsoil synthetic.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    AMSOIL Signature Series 5W-30
    By  MOMOTAKA,  a  Verified Buyer  from  CA  on  May 28, 2026
    Fantastic! I switch over to AMSOIL Signature Series 5W-30 at 30K service, my trucks seems to be running smoother, I intend to stretch out my oil change to 7,500-10,000 mile instead of 5,000.
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  • 5 star rating
    I think this is the best oil on the market. The only one I w
    By  JOHN,  a  Verified Buyer  on  May 28, 2026
    I think this is the best oil on the market. It’s the only one I will ever use in my Dodge 6.4 hemi
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Best oil out there
    By  ALEX,  a  Verified Buyer  from  AZ  on  May 28, 2026
    I love Amsoil products. They just work all the time.
    Bottom Line
    Yes, I would recommend this to a friend.
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