Customer Ratings & Reviews

I purchased a 2018 GMC and from the first oil change nothing but Amsoil has gone in! Best oil around.

I’ve used Amsoil for years in my various pickups, have used in my street car as well.

I have a 2007 Mercedes-Benz C230 Sport, and this is the only oil that I have ever run in it. I’ve never had a motor problem.

Good oil so far first vehicle to run amsoil. But 44k and running. Mostly high or idle.

I have been using this oil for 6 years with absolutely no issues. It has made the engine quieter and has great cold weather starting. Absolutely the best of the synthetic and all oils.

The oil protects the engine against severe wear in all types of weather conditions, I will strongly recommend this oil

I have been using Amsoil products for over 15 years. It all started with the 100 to 1 two stroke oil. Never had a problem. Had a Lawn-Boy 2 stroke mower that was 30 years old and it still had the original spark plug in it. Took it apart to clean the exhaust port and it did not need cleaning.

Amsoil Signature Series 5W-30 is by far the best oil for my LS1 engine! The engine runs quieter and promotes less valve ticking noise! This oil along with a Wix XP filter or Amsoil filter is the answer for extended life to the Trans Am!

Appears to be a good oil...

It took a few weeks but I could really tell the difference in the motor , Especially when idling next to a window

I have used Amsoil products for some time. I used to live in the northern parts of Canada, and switched to synthetic oil due to the extreme cold. I tried numerous name brands, but found amsoil not only provided great cold weather starting but was the only product that made a noticeable gain in the fuel economy of my vehicles. It is well worth the slightly higher monetary investment.

This is good oil!

Trouble free, quiet performance all year. No need for a top up during the san of use. Oil came out relatively clean, probably had much more use in it.

Perfect

2004 GMC Sierra SLE, 5.3 litre. 316,000 km and counting, engine still runs like new.

I have used Pennzoil and Red Line in my Ram and have found a more stable oil pressure reading from cold to hot with Amsoil.

Use in our vehicles-daughter came home a few weeks ago, and after changing her oil found that she had put 17,000 miles on her car-and the oil-since last year! That's why I buy the best Amsoil I can get.

Five star ⭐⭐⭐⭐⭐ product

Very good oil with durability.

So my daughters jeep is a 1.3l turbo. And asks for this weight of oil, after changing out fluid the engine definitely seemed to run smoother. Also being a member is great for cost savings especially seeings how I have 5 vehicles in the family.