Customer Ratings & Reviews

I have a 2007 Buick Terraza 3.9L V6. I have used Amsoil Signature Series 5w-30 since I bought it with 19000 miles. It now has 158000 miles on it. First thing I noticed when I switch to Amsoil was a smoother idle. Gas mileage increased 2 miles per gallon. Even with 158000 miles the gas mileage has stayed consistent at 19 in the city and 25 on the highway. I change my oil once a year with 12000 miles on the oil.

I use this in my brand new Subaru after 600 miles. Been happy as a pig in poop since. Been using Also in for 15 years in everything I own. Very satisfied.

Perfect in my cars all year round

I live in a cold climate, even at -36 there is no need to plug my vehicles block heater in.

The best.

2008cadillac dts I been useing it for 5 years in the car

I have been using Amsoil products since April 1991 and trust them completely to provide the best available protection for my motor vehicles. In my opinion, there is no substitute or equal to Amsoil's many years of R&D in synthetic lubricants and their resultant superior products.

I,ve been using Amsoil for many years and there's no better oil out there. Thanks Paul

I use all Amsoil products in all my SUV and cars Use the metal products on my firearms to prevent rust and smooth operation Amsoil is the best by far. And my family's trucks and cars

This is for a newer turbocharged volvo, oil always looks good when it comes out and the engine is nice and clean inside as well.

Have been using this oil since 2005 in my truck. 2005 silverado 5.3L tuned and full bolt ons. I had used it prior for 3 years in an older truck I had. Very confident with Amsoil that I've been changing the oil in the silverado once a year for the past 11 years. I also have a 2014 and Amsoil is used in it as well since the first oil change was due. Back to the 2005 truck. Reason I told you its tuned... many people know how a tune gets your engine a "little" less life. Well, I have had to change out the valve cover gaskets twice within the 11 years I've owned it and as far as valves and heads. They're like brand new. Once a year change intervals. Truck has 140k+ miles. Amsoil has kept it running smooth since day one. Can't beat that!

I use it in 2008 Taurus and a 2015 Ford Explorer. I've used it in the Taurus since 3000 miles and it now has 115,000 miles on it and have had no engine issues and still get 22 - 25 mpg. I bought the Explorer new and have used it since the first oil change and it now has 41000 miles on it. Love the oil ! I would recommend it to anyone looking for a high quality Synthetic motor oil.

Best oil for cold weather start ups. It increased my fuel economy from 27 average to 29

Amsoil synthetic is a high quality oil. I use it in all my vehicles. If you want superior oil with extended oil changes, amsoil is the way to go.

Use it on my daughters Mitsubishi SUV.

Car runs great with this oil

I have been an AMSOIL fan for two decades and continue to be super impressed.

I just started using oil and noticed a difference in the operation of the engine within the first change it is smoother running and quiet

I run this oil in a 1993 Dodge W250. This oil works great in this old truck. I am very happy with Amsoil, it is all I run in my equipment.

I use Amsoil Signature Series 5W-20 Oil in my 2014 Ford F-150 for maximum protection. The engine is the 5.0L, and it runs very well with this oil.