Customer Ratings & Reviews

I just changed my oil at 5000 miles and really like how Amsoil has been working.

Have used Amsoil for many years now. My engines have gone many thousands of miles without a problem. Great product!

As usual great service delivery etc using a soil for a long time in my cars and motorcycles great product

I switched from Mobile One to AMSOIL Synthetic SAE5W-30 Motor Oil three years ago in my C5 Corvette and have found that subsequent oil changes at 5,000 mile intervals revealed much cleaner oil when drained then at the same interval with Mobile One.

This oil is an amazing product. My engine runs cooler, performs better and my oil changes are further apart then compared to using other name brand synthetic oils.

Have now converted all my vehicles to Amsoil I see improvements regarding engine start, operation, as well as Mpg Buy It

I switched from Mobil1 to Amsoil Signature oil after seeing test after test and multiple reviews showing its superior quality. When quality matters and you want to take care of your equipment, use the best. It’s a no brainer.

I was surphow much smoother and quieter my engine runs after using this oil.

Car runs smoothly, oil went longer but still looks clean and new.

So I have been told that this is the best oil on the market by many people. Decided to try it out and I will say my motor runs better and the infamous 5.0 tick is no longer there. Great product and will continue to us this product.

Love this oil, My engine runs great on this oil. 137.000 miles and purs like a kitten.

My car is noticeably more smooth since I made the change to amsoil. Been running amsoil in my harley for years and decided to try it in my car. Recommended!

Best 5w30 on the planet..

...you're going to want Amsoil in that engine. We have had three; two 2013 and a 2016. The first 2013 wore out at less than 65,000 miles on Mobil 1 and that's good oil. The second 2013 engine was a brand new rebuild and it started making a hellish noise from the front of the engine after around 30,000 miles on good quality synthetic oil and I put Amsoil in it. It quieted right down. The 2016 was beginning to make a lot of engine noise around 45,000 miles and just like the other two, good quality synthetic oil was used with 5K oil change intervals, but when switching to Amsoil it quieted right down...and the used oil analysis' improved too. I'm sold. I'm even in the process of switching my Toyota Tundra over to all Amsoil fluid.

I run it in my F250 gasser. And improve the miles per gallon some but I love the extended oil changes and the oil looks so much better.

Great oil for my Vette, change it once a year per Amsoil. I have switched all of my vehicles over to Amsoil

The product speaks for itself. Delivery is exceptional (next day)

I’ve used, and continue to use Amsoil in any motor I expect to last for a long time. It consistently performs, keeps engine parts clean, and improves efficiency of fuel usage.

Exactly what I ordered

I have used this oil for years in all of my vehicles. The main reason I use it is that it is one of the only true synthetics on the market. I tested this oil after the rev counter on my Honda indicated an oil change was needed. That was about 6 months of regular city driving. The report came back indicating that I could let the oil go for a little longer between changes as the oil was still protecting my engine and in good condition. Nevertheless, I appreciate the piece of mind of following the regular the schedule and keeping to it. I'm happy to know my oil is still functioning well at the end of the maintenance interval. And I'm certain my engine is well protected.