Customer Ratings & Reviews

I currently use this in a 2015 Toyota rav 4 with 122,000 miles. Been using the high mileage oil ever since the vehicle had 75,000 miles. The vehicle sees a lot of short trips. The vehicle doesn't "use" oil(not adding an extra oil) between oil changes. In one year we usually travel around 10-12,000 miles

I have found that Amsoil representatives have exceptional people skills. In addition to that, their oil quality is the best!!!

Great price for a great product for your vehicle!

Great product.

I have used amsoil for quite some time and it is a great product.

I tell all my friends about this oil and boast how good it is. I been using Amsoil motor oil for over 20 years . I highly recommend this oil .if you have not tried it , you should … 5 stars

Best products

Great product will be buying it for all my vehicles.

I have been using Amsoil products for about 20 years or more. I used it in my Harleys and all my cars. I remember a ball bearing test report that came out a long time ago that made me consider using AMSOIL and I have been using it ever since. I use it in my 2007 350zx as well as my 2024 Acura Integra Type S. I use signature series synthetic, good for 25000 miles, and I change it every 5k miles, I actually changed my oil the first time at 1500 miles, then again at 5k, and now I will do it every 5k going forward to make it easy to remember, 5, 10, 15, 20, 25, etc.. It costs a little more, but instill confidence and makes me feel good, so I don't much care about the added expense, I change the oil myself, so I save a little money there. IMO, better than Mobil 1, Penzoil or just about any other brand out now.

Met my representative Ron at a local outdoor show. I told him that I had been looking to use Amsoil products. He informed me of the products that would fit my application. Helped me establish my account. I placed my first order. Web site was easy to use. Order arrived in a few days, complete and accurate. Last week, I changed my oil. The nice touch was the included thick vinyl gloves and paper funnel.

As always excellent , great products

Ever since switching all my vehicles to AMSOIL I have noticed a difference in performance.

I have been using AMSOIL for over 10 years and have seen better improvement on the condition of the motor and mileage increased a little. Now have over 212500 miles on my Dodge Hemi 5.7 and the only work that has been done to motor is normal maintenance.

I love it that they have the whole package available! I didn't have find oil, then go find my filter. Perfect!

I use Amsoil in my motorcycles and in my trucks I love it would not use anything else. That’s why I have an account and have it sent to my home every six months or so.

Easier starting, less time in open throttle after start up, quieter idle for 1 GR FE. Motor just runs smoother overall. Still questioning +2mpg increase but it's true on paper receipts. Stronger uphill power. Less transmission hunting/shifting up-down on long uphill hauls. At this point, it will be Amsoil High Mileage Motor Oil until there's no more Amsoil or no more IC motors in the garage.

First off Amsoil is top of the line oil! Many people say, “Oil is oil all of it is the same.” I’m sorry to say it’s not, Amsoil’s additives are far superior when it comes to wear on engines. Don’t believe a review? Research it there are videos that show testing. I use Amsoil for all my vehicles. Great service, product, and fast shipping!

After the oil change, immediately after starting I could tell that this is good oil. I normally use the signature series but wanted to try the AMSOIL 5W-30 100% Synthetic High-Mileage Motor Oil just to see what it was like or how my '04 Buick lLeSabre would take. The drive was great, felt it was worth it. This is what I plan on using from now on.

This oil goes in my 2007 Jeep liberty with 280,000 miles on the odometer. I have ran amsoil in this liberty since day one and I have NEVER had an engine issue. Runs as smooth as the day I got it.

I have confidence in Amsoil, however I have complaints: (1) The cost is almost unbearable (2) I really need the option of a 5 QT container.