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Customer Ratings & Reviews

AMSOIL Extended-Life 10W-40 100% Synthetic Motor Oil

Product code : XLOQT-EA

5 star rating Read 1,456 reviews

Customer Rating

5

87% would recommend

  • 5 1404
  • 4 40
  • 3 7
  • 2 2
  • 1 3

AMSOIL Extended-Life 10W-40 100% Synthetic Motor Oil

5 star rating Based on 1,456 reviews
  • 5 star rating
    Add it up !
    By  Kerry,  a  Verified Buyer  on  June 25, 2019
    Amsoil is a little spendy up front but almost free compared to repair costs.
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  • 5 star rating
    Great Oil
    By  Cody,  a  Verified Buyer  on  June 25, 2019
    I use Amsoil in everything. Trucks, welders, and commercial lawnmowers. The viscosity has always stood the heat and lasted
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  • 5 star rating
    Only oil I put in all of my cars
    By  Jeffrey,  a  Verified Buyer  on  June 25, 2019
    Liquid Gold.
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  • 5 star rating
    Amsoil is the best
    By  Ron,  a  Verified Buyer  on  June 23, 2019
    Love my amsoil products
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  • 1 star rating
    After 3257 miles its used 1 Quart
    By  wayne,  a  Verified Buyer  from  White Springs Florida  on  June 14, 2019
    Put Amsoil in at 20000 miles had not used any oil between changes. But since using amsoil its used 1 Quart in 3257 miles. Very disappointed .
    Bottom Line
    No, I would not recommend this to a friend.
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  • 5 star rating
    Great
    By  Thomas,  a  Verified Buyer  on  June 12, 2019
    Great oul
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  • 5 star rating
    yes
    By  Cory,  a  Verified Buyer  on  June 11, 2019
    Runs really clean in my Hemi
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  • 5 star rating
    Less oil loss.
    By  Tim,  a  Verified Buyer  on  June 11, 2019
    My truck has the cam phaser knocking for the last 60-70K miles. I decided to try AMSOIL so I ordered the signature series oil and filter. My truck started using a lot more oil after that. Not sure why. This time I switched to the xl series oil. Now it's not using as much oil. I'm not sure if it's a coincidence or what but I'll stick with the xl oil for now.
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  • 5 star rating
    Top Produce for the older car
    By  Big B,  a  Verified Buyer  from  Alberta  on  June 10, 2019
    Oil works well with older V6
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Would buy again
    By  Smikes362,  a  Verified Buyer  from  Navarre Florida  on  June 06, 2019
    This is the only oil I'll ever use. The best. Test proves it all. Everyone should use this. I'm putting amsoil in everything I own. Thanks amsoil
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  • 5 star rating
    Great products
    By  Frank,  a  Verified Buyer  from  Ca  on  June 05, 2019
    I use amsoil in all my vehicles. Confident with the product.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    great oil
    By  blackhat,  a  Verified Buyer  from  Ohio  on  June 04, 2019
    long oil change times
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Acura TSX with a high redline
    By  Beemerrider,  a  Verified Buyer  from  Vancouver, WA  on  June 04, 2019
    Since redline is around 7,400 rpm on my TSX Acura I want to make sure I'm using one of the best oils made. The car uses no oil between changes and the valve train is very clean. I have 118,000 miles on this car now and it still sounds and runs like new. I'm sure Amsoil is part of the reason.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Great product
    By  Tim,  a  Verified Buyer  from  Oklahoma  on  June 03, 2019
    Best oil out there
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    I plan on only buying Amsoil products
    By  Mike,  a  Verified Buyer  from  Reading, apa  on  June 03, 2019
    Very satisfied with Amsoil. I now use it in my motorcycle, SUV and pickup.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Yes I would
    By  Battery Man,  a  Verified Buyer  from  Excelsior Springs Mo  on  May 25, 2019
    Very pleased with the amsoil oil that I use in both of my vehicles, wouldn't go back the other way.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    The Only OIL
    By  Kridder,  a  Verified Buyer  from  Water Valley, MS  on  May 23, 2019
    I use Amsoil in everything I own.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    A great product
    By  Peyton,  a  Verified Buyer  from  Amite, La  on  May 16, 2019
    A great product, based on the oil analysis it holds up very well. Definitely buying again.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    I will buy this product again, certainly!!
    By  Fredster,  a  Verified Buyer  from  Wichita, KS  on  May 12, 2019
    Engine runs a little smoother and my gas mileage has gone up about .7 mpg..
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    yes
    By  sure fire,  a  Verified Buyer  from  Mt Pleasant, TX  on  May 09, 2019
    Best oil ever
    Bottom Line
    Yes, I would recommend this to a friend.
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