Customer Ratings & Reviews

I have put over 300,000 miles on more than one GMC...GREAT products. Still use all AMSOIL products, from grease to Oil.

AMSOIL Signature provides outstanding protection for my engine. Moreover, with Amsoil oil, I only need to change my oil once a year.

I've used AMSOIL for many years. It's a great product.

I used this oil in my 2006 Acura RSX since I bought it 6 years ago. It had 35,000 miles on it then now it has 187,000 miles. Still runs like new same power, uses no oil. And when I change the oil it still looks fine.

best oil on the market

Very impressed with the oil. I was. Mobil1 fan. Not anymore. I got better fuel mileage and didn't burn any oil like I did with the other product.

Great oil cheap price run it in two vehicle noticed a difference in my car it used to have a ticking sound and with the amsoil it stopped ticking . I used to run different synthetics in this car before amsoil and they were fine but the car started ticking after about 3000 km with amsoil it didnt tick at all so its gotta be one good oil . Also all my power equipment and toys run amsoil

If you love your vehicle this is the only oil to use. With oil being the life blood of your vehicle choose Amsoil. Best quality oil hands down. For 7k revs on my supercharged engine to my lawnmower. Nothing is better!

I trust Amsoil and put it my 2016 Ford F150. I got a little over 10,000 miles when the message to change the oil came on in the truck. I also use a Motorcraft oil filter and change At every oil change.

Love amsoil products and I don't use anything else

Using this in 15 Ford Focus. Wouldn't think of using any other products. Amsoil #1 !

I trust my 300000 mile daily driver to it religiously. AMSOIL of some type goes in everything i own.

I use this oil for all my cars. Great for cold starts on super cold days and good for hot operation.

This product, just like the signature series delivers on the promess and claims it makes. My 2014 Fusion and Escape rely on this oil for protection and it works.

Used this product for years. Never had any issues

Best oil that money can buy, I will definitely be an AMSOIL customer for life.

I use this in an older Z71 truck that has the 5.3 V-8 engine with 200k miles and most of these engines have lifter slap for a few seconds after start up but with this oil it doesn't seem to take as long for the slap to quit.

I started using Amsoil when I didn't have a garage so I wouldn't have to change oil out in the cold. These days I use the OE oils and just change oil when the maintenance minder says to. Too soon to tell how this is protecting the engine. Ask me in about 10 years or a couple hundred thousand miles.

GREAT OIL ALWAYS HAS BEEN NEVER HAD ANY PROBLEMS

I use this oil for our daily driven family car and it has worked great. I've used it almost since we got the vehicle so looking forward to seeing the long term benefits Amsoil is known for. I also purchased because I don't necessarily need long interval oil like signature series as well as more mileage. We use the car maybe 10k kms a year at most. Also, Its cheaper for this full synthetic than buying at a parts house locally. It in many cases is the same or cheaper than semi-synthetics. Great stuff.