Customer Ratings & Reviews

Switched to Amsoil this year. I can tell from my services the oil is a night and day difference as far as it’s clarity compared to Rotella Sythetic. Both oils ran with a 2 micron Amsoil by pass filter. I have been replacing the 2 micron filter every other oil service regardless. Just installed a BANKS wet filter CAI. Interested in seeing if there is any change to the next oil service.

Running this in my 98 Cummins 12valve using Donaldson filter and got 16,000 miles with oil still able to go a bit further. That's towing a 14,000lb 5th wheel for at least half that mileage. Also I lost less oil to evaporation from engine temps towing when I switched from Rotella T6, plus Amsoil doesnt have the french fry smell that Rotella T6 does. Only negative is initial cost, but its more than made up for in time between oil changes.

I have used this oil in all my diesel engines. Including Deere tractors, and duramax pickups. Zero problems in my almost 15 year old engines.

This 17 lb jug is really handy, however a pour spout with flexible neck like the one used for DEF Fluid would seal the deal on this all in one 10 qt jug.

Amsoil is the best oil you can get there’s nothing better. If you want your vehicle to last get Amsoil and don’t look back.

tractor runs quieter with this oil

Best oil you can buy.

Flows well for easy starts in cold weather, no oil consumption between drain intervals.

I have a 2018 GMC duramax and to protect this engine amsoil was my choice. Protection is critical for these engines allowing them to outlast other diesel engines.

Love this oil. I use Amsoil for everything on the ranch. Consistent quality for all of my engines.

Switching to Amsoil in my 2003 Dodge Ram Cummins, was a great decision. This truck had 230,000 miles on the clock. It runs quieter, mileage gained and feels like it has more power. Highly recommend it.

Awesome products plus fast shipping. Keep up the good work!

Never had a better product I've used synthecs for year's when I was in the US NAVY back in the 80's as a machinist it was mandatory schooling for oils education AMZOIL is the WORLD'S BEST PRODUCT EVER