Customer Ratings & Reviews

I don't really have time to change my oil every 2 to 3 months, so I use amsoil, it is the best bet to keep my car running even if I only change the oil once a year. And I actually save money using Amsoil's best oil once a year than to use a cheap oil every few months. ...a no brainer if you ask me.

I have been using Amsoil since the early 1980s all my vehicles, recreational toys, and tools. I have never had any issues. The cheapening of the word "synthetic" by Castol winning their court case has made it less clear what one is actually buying when the oil is labeled synthetic. Amsoil pioneered the synthetic oil industry and can still be trusted not to hide behind using the word "synthetic" as only a marketing ploy. I also use the 0w20 oil as specified in my newer Mazda 6. I do all my own maintenance and will continue to use only Amsoil.

Using Amsoil in all my vehicles for loong years and never had engine fail!!!

I have used Amsoil Synthetic Motor Oils for years now. The engines I put it in have gone 10's of 1000's of mile further than others of the same make and models which friends have owned. The engines run cooler and run better. And I consistently get better fuel mileage. Simply Put, I'm Sold.

Changing oil 1 time a year and trusting amsoil to protect our investment. Thank you

I use And oil in my wife's car, my pick-up and my motorcycle. Have used it for years. I would highly recommend Amsoil.

I have been using Amsoil products for 18 years. I started with my 1998 Chevy K1500 Suburban which I bought new and started using Amsoil oil when it had 38,000 kms. It now has 423,000 kms and is running as strong as the day I bought it. I firmly believe that Amsoil and regular maintenance, which I do mostly myself, are the reasons why this truck has lasted so long and has run so well for all these years.

Put Amsoil Signature Series 5W-30 in our 2016 Wranglers and noticed both an increase in mileage and an end to the occasion start-up tick which happened on occasion. Never using any other oil than Amsoil in the future.

always recommend this stuff

So far so good

Great oil to use all the time, 15,000 mile or a year which ever comes first saves time and money, environment too!!

I have used this oil in all my vehicles since 2006. I have a 2006 charger with 3.5 h/o it has 273,000 ; 2006 town and country 3.8 has 255,000; and a 2013 charger 3.6 pentastar which has 148,000 , which gets between 33 and 35mpg on the highway at 70mph. I change the oil filter and top off fluid at 12,500 miles on each vehicle. (High quality filters purchased from amsoil.)

This oil cause my engine to run cooler along with the great AMSOIL transmission fluid .

It is expensive, but worth every penny. Instead of replacing every 3000 miles, it is once a year!

Interval of change time is great. Better gas mileage in my pickup. Works great great product.

It seems to work. I have not analyzed any gasser oils yet but Amsoil was great in my diesels so I figure they can handle gasoline which is so much cleaner.

Great oil.

I use amsoil inn both my vehicles. Both tractors and mowers.

Used in a new Dodge Caravan and works great

I use this product in my wife's new 2017 Hyundai. Since the break-in period is over, I now use the 5W-20 Signature AMSOIL in the vehicle. The gas mileage actually increased slightly, and the engine purrs now, which is a change from the break-in oil. I will continue to use this oil, without doubt.