Customer Ratings & Reviews

Amsoil is the best motor oil money can buy! Been using Amsoil for over 20 years. Every vehicle engine I’ve used Amsoil in, has lasted a very long time with zero failures.

I've used several different products (i.e., automotive oil, 2-stroke marine oil, 2-stroke small engine oil (e.g., for chain saws, leaf blowers, etc.), marine lower unit lube, etc.) for over 20 years. In my mind they are the best in each application else I would not be paying the premium price. Top of the line products are cheaper than replacing vehicles, marine engines (2- and 4-stroke). I believe in Amsoil and I recommend it to others.

Been using Amsoil for about 20 years , motors just last a lot longer when using this product. If its a gas engine I use amsoil , If I had a diesel it would use Amsoil as well. It is just the best .

I purchased a new 2017 GM truck with a 5.3, drained the oil as soon as I got home from the dealer. I’ve used 0W20 from day one without any worries about the DEXOS high jack from GM. In my world if it needs oil, its Amsoil, I’ve used it for decades. If you own a GM product, don’t fall for the hype they push, take comfort in knowing this oil is the real deal and will not fail you.

Been using Amsoil for years, along with filters. Oil feels like it doesn’t need changing when I do change.

I won’t use any other synthetic oil other than Amsoil and I would highly recommend it to anybody looking to find the best synthetic oil

Amsoil is the best oil on the market for synthetics I will not use any other synthetic nor will I go back to straight regular oil. I would strongly recommend Amsoil to anybody in the need of a pure synthetic

I do not use any other product in my vehicle it keeps the engine super clean.

Absolutely love this stuff I run it in my 2006 Saab 9-3 and my 2003 Saab 9-5 and they run like a dream cousins ask for anything better.

In my cars there’s only 1 oil that goes into, AMSOIL....this says it all.

With modern engines maintenance is the best preventative service a vehicle owner can do. Heat control and lubrication are just two of Amsoil qualities. Repairs are very expensive so maintenance can be your best investment.

This oil is a very good product, get very good mpg and engine protection. Will always use it only one for me

Here in Indianapolis Indiana, during winter temps can get below 0, Seems to flow very well at cold startup.No cold start ticking like with my old oil.Thanks

The Best..!!

Been using this oil for over 30 years. Would not use anything else.

The products are great, but the price of membership plus higher oil prices are too much. There needs to be a compromise. Lower your prices could increase sales.

Put 5W-30 Signature in a 2017 Volvo (for ACEA A5/B5). True story: The morning after first snowfall in my apartment, I scraped the ice off of my windshield but did not bother to clean snow off my hood since it would usually fall off of my car while driving in previous winters when I got up to speeds of 60-70 mph due to engine vibrations and heat. Amazingly, in my first winter drive with Signature Series, the snow did not fall off of the hood and stayed almost entirely intact on the whole drive even with highway speeds and steering. Furthermore, the engine did not burn a drop of oil in the first 7000 miles of use. The engine is a turbocharged inline four, so high engine temperatures and vibrations are normally problematic. Cruising RPMs dipped by 200-300 as well (from 2000 to 1700-1800), which is another issue for inlines. The product works, period.

Great oil. I use it in my twin turbo h/o 3.5L Ford .

I’ve been using Amsoil products for years and I will continue due to the quality and success I’ve had with Amsoil. I use Amsoil in and on, everything I own.

Signature series is the best!