Customer Ratings & Reviews

been using marine Amsoil for 30+ years, now have either XL 10W-40 or HD diesel in 6 different vehicles , 3 w/over 100k miles. 71 Jeepster actually started using less oil! May be my imagination, but all 6 seem to crank quicker, run smoother than before!!

Great product

Have been using this oil along with the amsoil oil filter iBall my vehicles for over 20 years wouldn't use anything else

For many years I'm using Amsoil and I've make some of my customers believers in the quality and money saving Amsoil products.

I just put the 10w-40 Amsoil in my 2013 Toyota 4Runner with 167500 miles on her, I use Purolator filters on my oil changes. As soon as I cranked up the engine I could tell the valves were more quiet at idle through acceleration on an interstate on-ramp. I highly recommend this oil throughout the year. This engine is running smoother now vs. Mobil 1 synthetic. No comparison!

I have used AMSOIL products in my cars for almost 20 years and have never had an oil related repair. I will always depend on the most dependable lubricant for all my vehicles.

Again I would never put any thing but Amsoil in my Vehicles. That would be my Harley, F150, Z4 BMW and wifes(charlotte) BMW.

All my important engines will always drink Amsoil. Excellent products!

Best thing to ever put in my engine

Great oil only oil I use.

Installed in my 2020 CRV with Amsoil filter, dealer installed for me. Have been using Amsoil products and believe they are the best! Already have noticed smoother idle and a slight increase in fuel mileage.

Great Product that is delivered within days of my order, no fails in 10 years....

You can definitely tell the difference between this oil and a regular oil. I would definitely use this oil in everything that I own.

Good Products!!!!

This is an amazing oil for high performance engines!

TTUTO bene grazie good oil

I bought my GMC pickup in 91 and immediately changed it to Amsoil premium. For years I changed the oil filter at 10,000 miles and the oil at 20,000 miles. Now I use Amsoil XL and change the oil yearly. The truck has 275,000 miles on it and the engine has never been torn down, oil consumption is minor. I also use Amsoil in my wife's cadillac DTS, 3 lawn mowers and log splitter. Their products are the best.

Bought used avalon for granddaughter. Did some engine work and notice some slug. Run amsoil flush and added synthetic back in the car. Always a good move to clean up engine.

Love their product, we use Amsoil in all our vehicles( Kia Soul turbo and 2017ss camaro) Highly recommended

I have been using Amsoil products for 20 years. I still love pulling the oil dipstick out after 5-10K miles of usage and seeing how clean the oil still looks. I run it as prescribed and have two vehicles I have put over 200K+ on each and a third vehicle that has over 300K+. Great product - does what it says its going to do!