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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
    I have always found AMSOil to be excellent
    By  MICHAEL,  a  Verified Buyer  from  AZ  on  June 11, 2025
    I had a local shop put "synthetic oil" in from a giant barrel. I changed it a mere 1000 miles later with AMSoil and the moment I started the motor it purred... much smoother than mystery oils.
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  • 5 star rating
    Amsoil 5 50
    By  ANGEL,  a  Verified Buyer  from  Odessa Texas  on  June 11, 2025
    Quick shipping, received fast.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Great oil
    By  TOMMY,  a  Verified Buyer  from  New Jersey   on  June 11, 2025
    Been using AMSOIL for over 10 years in my truck,my 69 Camaro and my HD. Great product and company. Short story. Oil for my 69 camaro. They did a quality test. The oil wasn’t up to there specs(has zinc in it for older muscle cars)didn’t have enough. They sent another order of oil free of charge. They didn’t have to say anything. I would have never known. That’s a stand up company. Oil was over $100,that they sent me. customer for life
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Signature Series 0-20W
    By  STEVEN,  a  Verified Buyer  on  June 11, 2025
    Very good product for turbo engines.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    2019 Colorado
    By  OSCAR,  a  Verified Buyer  from  Nakusp, BC Canada  on  June 10, 2025
    I’ve been using amsoil for about 4 years now in my truck and wife’s Jeep and my Harley and I like the fact I only need to change oil once a year. Will continue to do so.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Motor oil
    By  MICHAEL,  a  Verified Buyer  on  June 10, 2025
    Motor seems to be running better. I think it likes this oil.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Awesome peoduct
    By  LARRY,  a  Verified Buyer  from  San Jose , CA  on  June 10, 2025
    Here's a sample review: 4.5/5 Stars I've been using amsoil motor oil in my corolla 2013 and 2019 prius prime for a while now, and I'm really impressed with its performance. Both engine runs smoother, and I've noticed a significant reduction in noise and vibration. The oil seems to do a great job of keeping my engine clean, and I've had no issues with leaks or spills.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    GTO Oil chg.
    By  PETE,  a  Verified Buyer  from  NH  on  June 09, 2025
    Using the factory recommended oil for the LS powered Gen.V GTO. Also used 2 qts. more to top it off. No Doubt in my mind it's got the protection it needs now for the abuse I'll put it through this spring/summer and partial fall!
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    2025 Mazda 3 Hatchback
    By  JEREMY,  a  Verified Buyer  from  South Carolina  on  June 09, 2025
    I bought this oil to use in my wife and I's 2025 Mazda 3 Hatchbacks, and to use in a 2025 Honda Ridgeline. I previously used it in a 2020 Subaru Outback Onyx Edition XT and the oil was phenomenal. I was running my Outback 11,000 miles between each oil change when I sold the vehicle back to the dealer I bought it from. I recently changed out the factory oil in the Mazdas from 500 miles to 800 miles to get rid of the break in oil. I will begin with running each vehicle about 7500 miles and then change it to see what the oil looks like. If the oil looks good, and I expect it will, I'll run it 8000 miles until I change it again. I believe this oil to be the best available in North America!
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    6.2 Silverado
    By  LANCE,  a  Verified Buyer  on  June 08, 2025
    I Swap my 6.2 Silverado over to this and it's never run better
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Great
    By  ANDREW,  a  Verified Buyer  from  Florida  on  June 07, 2025
    Best oil products
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Loving it
    By  TYRONE,  a  Verified Buyer  from  Philadelphia  on  June 06, 2025
    Been using Amsoil SS for my 2018 Durango GT and with 215k miles still runs great. I’m not sure if it because of amsoil but I have not had the common lifter failure on these 3.6 engines.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Great Oil
    By  Noah,  a  Verified Buyer  on  June 06, 2025
    Only oil that will go into my 2021 Mustang GT. Amazing product.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Great oil
    By  TERRY,  a  Verified Buyer  on  June 06, 2025
    Fast shipping great product
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    First time customer
    By  MICHAEL,  a  Verified Buyer  from  Deland Florida   on  June 06, 2025
    I recently changed the oil in my 2020 Ford GT. After reading several reviews pertaining to Amsoil I decided to give it a try. Next time I change the oil I’ll have it analyzed and write the results!
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  • 5 star rating
    ‘17 6.2 Silverado
    By  JASON,  a  Verified Buyer  on  June 06, 2025
    After researching different brands to use, came across AMSOil and saw they had a local distribution center near me. Ordered and picked up the same day. Great pricing through the membership, so changing all of my fluids over to AMSOil when needed.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Superb Product
    By  KIM,  a  Verified Buyer  from  Livonia MI  on  June 05, 2025
    Test after test after test confirms that Amsoil Signature Series is best oil to be putting in your vehicle, and it's the only oil I purchase for my Honda CR-V.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Oil for Dodge charger srt 392
    By  ROBERT,  a  Verified Buyer  on  June 05, 2025
    First time using this oil and I will forever use it from now on!! My motor sounds much happier with this oil!! Thank you so much AMSOIL!!!
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Great product
    By  T L,  a  Verified Buyer  from  Texas  on  June 05, 2025
    Best motor oil you can buy! What a difference when you do your first oil change with Amzoil. Like two different vehicles!
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Mazda Cx-5
    By  Joey,  a  Verified Buyer  on  June 03, 2025
    Have used this oil on the wife’s Mazda CX-5 for three years. No problems, no leaks, great oil!
    Bottom Line
    Yes, I would recommend this to a friend.
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