Customer Ratings & Reviews

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!!!

This is third time I’m using this oil for my sports car really impressed with the quality of the oil. Highly recommended

Love this oil. I use Amsoil in everything on the ranch; all of the vehicles, tractors, SxS, dirt bikes, everything. I have never had an issue caused by oil since switching over. I can’t recommend Amsoil Fluids enough.

Bought used RV w/14k and I knew that it was serviced, but did not have a clue of what oil is in it. Used Amsoil engine flush as as the start of oil change and after oil fill, two Amsoil Upper Engine Lubricant bottles, and two bottles of P1. After start and ten minute run, I stopped engine and checked levels, and restarted again. I noticed how much quieter the F450 V10 sounded. Much less than before. I love any and all of Amsoil's product's and highly recommend this one.