Customer Ratings & Reviews

I have been using AMSOIL for years I’m am a master technician for 36 yrs I have never had a internal engine or transmission because of AMSOIL and consistent fuel mileage and cooler engine and transmission temps. AMSOIL is proven great product.

I have a 2001 Nemar Dutch Star motor home with the 8.1L vortec engine. Wanted the best for upcoming move to Texas... Hope my gas millage comes up a bit. :) Bob

One of the best oils out there. Been using it for years without any issues.

I like the oil prices are not too bad when you consider how much better it is I was mobile 1 users before AMSOIL

This is my go to oil for my last four Jeeps. When I sold my Jeeps, they had long past the expected mileage life and still had almost original MPG usage. Always started, ran smooth, and did everything I would expect an engine to do.

1. True Story. After Hearing the Ratings of this Oil, a Welder friend of mind, Soaked a Perfect Peace of Metal in AMS OIL for safe Keeping to prevent rust. it Seemed like a great Ideal for the Job at hand that was scheduled in 6 months. The Oil had penetrated the Metal sooo Deep that is could not be washed with 3 of the Strongest Soaps and could not be Sanded off. The Metal would not keep a Weld Together. 2. My Fan Belt Suffered a Snow Bank and Stopped Working during the Winter. The First Hot Day of Spring was shockingly HOT and the Motor was Running the RED. URGENTLY I Stopped the Motor on the Road Side and turned on the Interior HEAT to Cool Off the Motor. I started it back up for the prestone to circulation. The Hot Needle went down and The Motor Never WARPED and Never Stopped Running but it did start to Burn one Quart of Oil which brought me right up to the next scheduled Oil Change. Oh... by the Way... My Much younger cousin bought that car and SHE was NOT mechanically incline to know about Car Maintenance and RAN that Motor DRY for at least two weeks with Just AMSOIL Residue on the Metal. No Problem. 3. My WORST quality is Procrastination. So... I know I Have to Pay for the Best Oil if i don't make an Oil Change On time. With AMS OIL, it takes the Stress out of Worrying and to go the extra Miles with Peace of Mind.

Have used Amsoil for 25 plus years & it hasn’t let me down YET!!

First time using Amsoil. So far couldn’t be more pleased. Longtime user of Royal Purple but now am sold on Amsoil. Could feel the difference immediately after startup after oil change. Smoothness of engine running is unreal.

Its the best oil so if your smart buy it . Signature series

I have been a preferred customer and have been only using AMSOIL since 2009. The AMSOIL products have never let me or my equipment down. I will use no other. This oil is a 25-thousand-mile oil which I always compliment with the 25-thousand-mile AMSOIL filter.

Very happy, excellent

Love the product and speedy delivery but the shipping is Way to much

2nd order!!!