Customer Ratings & Reviews

Have been using this oil for a 1 1/2 years changing it at about 8,000 miles and 10% oil life at every oil change and the used oil comes comes out pretty clear and seems like I can let it go for another 5,000 miles. Manufacturer on my Charger states never to go over 10,000 miles. I drive mostly Highway Driving so 15,000 miles with this oil would be no problem for anyone to drive. Always follow Manufacturer instructions but peace of mind if you go over oil life monitoring system in your car.

I don't personally use this specific oil. I facilitate ordering it for my son to use in their 2013 Subaru Forester which requires this weight. the Extended-Life product is a good option for both protection and price.

Gained 8-12 lbs of oil pressure in my 2008 Silverado over clean Mobil 1 High Mileage of the same 10w40 grade.

Happy with my high mileage car

Truck runs great with this oil👍👍

Great product

I have noticed a significant change in my engine’s performance, idle has decreased runs a lot smoother now.

The Extended-Life 5W-30 is a good balance in value and performance. I service some of my family's cars and this saves me some money and with still providing outstanding protection. I use different weights per manufacturer's recommendations.

This stuff keeps you engine feeling smooth and running good.

Been using Amsoil in all my equipment for more than 20+ yrs, so it was just natural to start using it in the 2015 F150 I recently purchased. The engine and oil are both running about 25° cooler. There was a slight misfire,which has progressively gone away as the filter has started cleaning the inside of the motor. Getting 25+ mpg around town which I'm happy with, 28+/- on hwy! 2.7 V6 with 107k mi. Had a little "chatter" at start up, but that's gone. Way more power,just tap the pedal and hold on, lol. Yeah, I'm a happy camper!

This oil gives me the peace of mind that my engine is being protected for more miles than my usual change intervals. Nice to know you have miles to spare if something comes up & more miles need to be added before the oil is changed.

Use this in my Suburban and my Buick Lucerne, since the filters are rated for 15k miles i change the oil at 15k miles, my 08 suburban has 200k mile on it and the 07 Lucerne had 113k mile when I just sold it, neither vehicle has had any engine work and both run smooth as they did when new.

Good oil, but don't expect it to fix a wore out engine.

When offering gimmicks for certain order sizes, please stop with the can Koozies!

Have used this in 2018 GMC Yukon since 2022 when my wife's 20128 Yukon amassed 110000 miles. Used Amsoil signature series 0-W20 since new. No issues , plane to keep on the road as long as possible and using AMSOIL products will definitely help in doing so.

Amsoil is TQ

I have used Amsoil oils since 1980 when I discovered their superior performance for my chainsaw. I use them to this day in my 2012 Tacoma pickup, and appreciate the quality I have come to expect.

Came in quickly good quality oil ams oil is all I use in all my vehicles

Great product easy to use.

1995 nissan pickup with 325,000 miles