I've used and sold Amsoil products for about 18 years exclusively, without one issue. At least 100,000 miles on three different cars and one almost 170,000. (2002 ML 320). Once a year oil changes are the norm.
I have been using Amsoil on all my vehicles for a couple of years. I really enjoy the extended change intervals and the protection Amsoil provides. This is the only oil I will use. Engines seem to run a lot smoother and gas mileage has increased a bit.
I have used Amsoil oils in my vehicles for 15 years. All of them have been 1990's or older. They keep the trucks/car running great! Not only that, but changing oil once a year is so much nicer with multiple vehicles than every 3000 miles.
I did a complete inspection of my vehicle engine right when I bought it. There was no sludge in it. For the past 5 years I've been using only Amsoil in it and after an engine failure I opened the engine and discovered industrial quantities of sludge in the oil pan, all throughout the engine, blocked lubrication ports, etc. Head gaskets were in perfect condition, there was no antifreeze present in the oil. I won't be using Amsoil anymore and I'm switching my other vehicle to a different brand too.
By 
Kersey52, 
a 
Verified Buyer 
from 
Toronto Canada 
on 
June 29, 2017
Oil and ea filters are high quality and worth every penny
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
this is the slickest product going.
By 
ridgerunner rick, 
a 
Verified Buyer 
from 
malta ridge,ny 
on 
June 29, 2017
In all my(and others) passenger vehicles.
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
Smooth
By 
TerryRH, 
a 
Verified Buyer 
from 
St Louis 
on 
June 28, 2017
Really smooth and quieted the motor a good bit. About 3k on this oil change and it still runs as good as the day I changed it. It hasn't started to break down like some other oils.
Use this in my truck engine. It's a great product. It keeps my motor clean.
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
Signature Series 10W-30
By 
Joe, 
a 
Verified Buyer 
from 
American Fork, UT 
on 
June 27, 2017
I have a 2013 Hyundai Sonata. Great car. I have been using Amsoil after the first scheduled oil change and have noticed better performance, meaning the engine cranks over easier. The car runs, my opinion, a lot better. During my driving and idling with this car, I noticed that the engine has a small pinging noise. Soon after I get a recall notice in the mail from Hyundai that during the engine building process, there were small metal shavings that were not completly taken care during the the assembly of the main bearings, thus this will cause a "pinging in the engine. Huyndai will futher investigate this matter and send another notice explaining a course of remedy. I was using Amsoil 5W-20 signature series oil, and since I live in Utah and according to the owners manual I can use 10W-30. I purchased 10W-30 signature series oil and when the time came to drain and fill with oil, I put in the 10W-30. There is no pinging noise, however to be truthful, I think because of the heavier oil I have not been getting the mileage that I did with 5W-20. But i'm willing to sacrifice milieage for a heavier oil that could outlast the Hyundai problem. I highly recommend Amsiol oil.
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
Best oil
By 
Pipes p, 
a 
Verified Buyer 
from 
Edmonton alberta canada 
on 
June 27, 2017
Ive been using amsoil for 25 years. Its pricey, but i pay it for a reason!
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
Have used for years
By 
Mark the pipeliner, 
a 
Verified Buyer 
from 
Medicine Hat, Alberta 
on 
June 26, 2017
Since my 2004 F-150 called for 5-20 I have used where required. Is far superior to any other 5-20 oil I tried and burnoff and protection.
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