Customer Ratings & Reviews

Perfect oil for 08 LS 460. Car runs smoother.

If you want the best for your engine, Amsoil is the only way to go. There is no way I would use anything else.

Used this oil in my wife's car with the AMSOIL filter a must for top performance.

I put AMSOIL in everything I own from my push mower to my 6.7 liter Cummins this is the best oil hands down. P.s I've been a automotive tech for 26 years and won't use any thing else.

Every product I have ever bought from Amsoil has passed my expectations...

Best oil on the market

You get what you pay for, use it in everything I own.

I use Amsoil lubes in all my vehicles. They are the best. But, at $10/at compared to competitive brands @ $5-6/ at, such as Mobile 1 and Valvoline Syntech, I'm not sure it's the best value.

I use amsoil signature series in everything I own!!

I've been using Amsoil in all my vehicles for more than 20 years and experienced smoother & quieter running engines (once oil was changed to Amsoil) and first hand visual experience how clean it keeps the engine after 180,000 miles the valvetrain was unbelievably clean (valve cover gasket replacement). There was absolutely no sign of tarnish whatsoever. It appeared as clean as it would have with 100 miles. If I didn't see it with my own eyes I would have said that's BS. Great Stuff! However; what concerns me is the oil comparison tests such as the current Viscosity Breakdown Signature Series has conventional oil in the test. I feel that's not a fair comparison. Let's compare synthetics with synthetics Incl. popular brands. Schaffer really???

My Tacoma loves Amsoil! Engine, Differentials, and Transfer case all run with Amsoil.

It’s my first oil change with Amsoil, will know more after a few

The signature series 5W30 from Amsoil is the go to product for me in a stock LS engine configuration. I Run a stock LS3 in my C5 corvette and I push the engine very hard in various racing events. I trust Amsoil over and other product at any point between oil changes. There is never a time when I am concerned about the engine protection that this oil provides.

Order arrived very quickly. I also received a handful of stickers. Small thing I know, but really makes the difference.

AmsOil is the best oil on the market hands down. Even my wife notices the deference when we started running it in her car.