Customer Ratings & Reviews

I'm an Extremely satisfied customer and I would, and have recommended Amsiol products to many others.,so if anyone is cares for their vehicles engine like I do I highly recommend doing your research on head to head testing of Amsiol products against other top brands to see for yourself the results.,A high Quality oil is the lifeblood of your engine. Amsoil is the best.

Been running AMSOIL since I got the car. Had the oil tested by blackstone after every oil change and under the interval that I use the oil holds its viscosity with plenty of tbn left. The car idles and pulls smoother. Planing on moving to the 5w-30 after winter.

Don't write many reviews but this product deserves it. I dive a 23 Jeep wrangler JL. I have been using this product since my first oil change. I believe it is by far the best oil for the longevity of my Jeep, and I hold on to vehicles for a very, very long time. I believe in it so much that I never have used my dealer free lifetime oil changes because they refuse to use any other oil but their own Mopar brand. Imagine that. Free vs. paying a premium price for Amsoil plus cost of the oil change. Oh, I almost forgot that I use their filter as well. No more K&N. Yup, I'll do it for the life of my Jeep!

Best oil in the market

As an aviation professional, I know the importance of preventative maintenance. Amsoil seems to stay cleaner longer than other quality oils. I use it in all my vehicles.

Love amsoil !

Used this Signature Series 5W30 oil exclusively in a 2006 Scion xB with the 1NZFE engine in it. It went 230,000 without a hitch before the Maine winters destroyed the rear suspension components to the point where it was not able to be saved. Had I thought to rust proof this, I'm convinced that I would have put over 400,000 on it or more. Shame on me. Currently running it in a 6.0L Vortec-powered 2013 Silverado 2500 HD that runs about one a week but when it's running, it's being worked hard pulling my diesel tractor and hauling firewood. I love knowing that I've got insurance in the crankcase. Running Signature Series 0W20 exclusively in my Subaru and Mitsubishi and both engines are running flawlessly with higher miles and no oil consumption whatsoever.

This is the best and most durable full synthetic oil, for all my vehicles! Really quiets the engine down, as well

This review is mostly based on the same product but a different weight for a different car. The other car was Signature SAE 0W-30. Signature Synthetic worked very well for the other car and I"m sure it will for this new car as well. With the Amsoil Signature the oil consumption was reduced by much more than 50%. I had no problems with the spirited turbo 4 cylinder in the previous car. I have to believe some of that is because of the Amsoil oil vs ordinary oil.

The best stuff manufactured for best longevity results. El mejor aceite

Using 7 quarts of Amsoil signature series in my explorer st gives me a piece of mind that my vehicle is being well taken care of externally and internally thanks to this awesome product from Amsoil also added some trans fluid to my vehicle a while back that smoothed out some trans stutter.

Great product. Car feels much better, I can tell the difference.

I have been using this product on 2 hyundai elantras and 1 jeep since new. Change filter and top off oil at 5000 miles and change oil and filter at 10000 miles. Jeep has 105k, 1 elanta has 65k and the 45k all are fine.

You can tell there is less drag on motor when starting. It starts much easier.ive also noticed it does coat engine with a lasting film because I've gone up 1 mile per gallon after 15.00 miles of use. I can only attribute that to less metal on metal contact in engine. Love the oil and recommend for anyone

AMSoil products are second to none. We use in all our vehicles, one with over 200k, no issues at all. Honda/Toyota love it.

First time using Amsoil. Should have switched sooner. Have a Ram 1500 with the 3.6 and 88k miles. Runs great. The Signature Series oil has increased oil pressure by 5, decreased oil temperature by 6 and it runs even quieter than before. I did the Amsoil flush also. Can't wait for the next oil change to see the condition of the oil and filter.

Best

The best oil on the market. Been using for 100k miles now and zero problems. My truck runs better after every oil change.

I’ve noticed cold starts are a significantly quieter on cold mornings whereas with other engine oils I would notice a little bit of valve train noise and overall just a smoother running engine with AMSOIL. 2010 ford crown Vic 162K miles.

This oil viscosity has proven to give me the best oil pressure on my 418 CID aluminum LS3 engine. Love it!