Customer Ratings & Reviews

noticed a difference the minute i started my motor , 100 miles later motor still sounded great , became a lifer for this oil , now i use it in every toy i have .. cars , trucks , bikes ,tractor . Thanks AMSOIL !!!

It is pretty hard to review a motor oil without some actual test data or looking inside the engine before and after using a product. I do have confidence in this product to protect my Harley engine as well as, or better than any other oil.

Product arrived sooner then promise date. Just changed oil will have to wait some time before i can say how it works.

First time I used the oils and I will use it again

Does what is claimed ... very high quality ... Genuinely happy with product performance

Always run Amsoil in my Harley

2019 Harley fat boy runs a lot cooler and smoother than OEM oil that it came with. Change engine, transmission and specific primary oil at 1k. Bike shift into neutral super easy compared to before. No joke no BS. Worth the money. Order straight from company, a lot cheaper than Amazon and fast delivery. Would highly recommend this oil. Real customer with real world feed back. Try it for yourself.

Makes engine run smooth

Changed my oil in my 2009 Harley Davidson Softail Deluxe and it runs smoother with less engine noise. Perfect for the weather here. It is the only oil I will use.

Best oil I have ever used. The only oil I will ever use.

I bought my Indian motorcycle almost 6 years ago. There wasn’t much aftermarket support but Amsoil had an oil blend that’s specific to the needs of my engine. Prior to the Amsoil product I could only use the manufacturer blend which is 50% synthetic. This is to ensure there’s no clutch slippage. When I read Amsoil was a fully synthetic blend with friction polymers added I trusted it wouldn’t allow for clutch slippage. After a few years of using Amsoil I can attest to witnessing no slippage after a robust launch here and there! Thanks Amsoil! Oh…. And one more thing, become an Amsoil member. IT’S TOTALLY WORTH THE SAVINGS!!!!

Best synthetic oil on the market.

My motor has never sounded better. Runs cooler than the syn3 I was using. I've tried alot of different oils over the years and Amsoil is by far the best.

Been using this oil forever. Its proved itself over and over even on extended oil changes.

After realizing such a dramatic improvement in my '65 Pan---smoother, cooler with higher oil pressure, not to mention no smoking, I had to try it in my '71 Shovel. So far, nice: Easy starting, super smooth, 10 degrees cooler. This is a new era for "old iron" oil quality. Thanks AND OIL.

J'ai reçu ma commande promptement et comme demandé. Service 5 Étoiles

Makes the Indian purrrr. Great stuff.

This is the best oil I have found. The only one I run in my Harleys and I am a master mechanic and its the only oil I use in the Harleys I work on . Worth every penny.

Simply put the only oil I'll ever use in my Harley

I’ve used this oil since my bike had 11,000 miles on it. My bike was a 2009 HARLEY VROD MUSCLE and I just sold it due to my age of almost 76. Time to hang up my spurs. When sold this month the bike had 80,437 miles on it without any incident. It didn’t use or burn any oil and ran like new, to which I credit Amsoil, one great oil.