By 
BENNY, 
a 
Verified Buyer 
on 
March 24, 2021
Been using amsoil products for years and I’m a firm believer that it prolongs the life of your engine. Had gas trucks with north of 400k miles on them by using these products. Hands down the best oil out there
I use amsoil in my 2014 Ram with a 5.7 hemi, this engine is known to have oiling problems that cause it to fail. I have 113000 miles on it and no lifter or cam failure yet.
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
Longtime Customer
By 
MARK A., 
a 
Verified Buyer 
from 
Everett, WA 
on 
March 14, 2021
I use the 5W-20 XL to do oil changes for my daughter's 2009 Kia Sedona. She bought is used a few years back and after she had the dealer do her first oil change and I noticed they were using a bulk 5W-30 I told her to let me take care of it. I have done one initial Amsoil Flush and am using the specified 5W-20 since. I use Signature Series in my cars, but I to give my daughter a break on price the XL series is a good option. I inspect the filter pleats and the detergency of this oil continues to clean this engine as I find carbon debris, but less with each oil change. Been using Amsoil since 2005!
I own a 2004 Mazda RX8 and this was my first time running a synthetic oil. After the oil change, car ran extremely smooth. The car idle smooth, vibrated less, an accelerated seamlessly through the RPMs. Great product worth the money.
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