Customer Ratings & Reviews

Great product, worth the cost.

Very pleased

Just what my Shelby GT350 needed.??

Great product! I use and highly recommend the signature series in my daily and my fun car! Noticeable improvement on acceleration and much cleaner and quieter engine operation!

I use this oil in a turbo BMW as it is called for this weight. Since I like other weight oils from Amzoil, I use this in the BMW.

Used in my 2007 Ford F-150 with 220,000 miles.

I have been using this this in all my vehicles since 1992. In my new cars I change to Amsoil at the first oil change. when I retired from Work Jan 2012 I was driving a Dodge Neon, 4 cyl standard shift. I drove 98 miles round trip every time I went to work. Used this Amaoil and also put Amsoil in the manual transmission. I had 160,00 miles on it when he flew to Fla from Pa to pick it up. He is still driving it. Drives up the Pa turnpike every day. He turned over 300,000 miles on it about 5 months ago. Still has the original clutch.

Great Oil, use it in all my LS motors. Many of them have exceeded 300,000 miles already

Great stuff!! The fact that I can pair this and an Ea filter to go to 15k every change is awesome. I would and do recommend this to friends and family for its outstanding performace and reliability.

Is there something proven better to use? I researched before first purchasing this oil for nearly 13 years in the same 2002 Ford F150. Use the Amsoil filter to trap more contaminants that occur over time as well. The vehicle has less than 29Kmi on the odometer. My most recent oil change had less than 850 miles over a 13 month period. It's perfect for preserving and extending the life of any engine and with my truck this oil is an absolute.

The best motor oil money can buy!

Being the only one driving the car and rarely having someone inside as a passenger you get the feel of your car. In 2008 I bought a Pontiac Grand Prix and I went to a convention in Dallas. There was an amsoil booth there and I checked it out. I did end up spending way more money than I thought I was going to. Once I put the oil into my car and I drove to work the next day I definitely felt a whole different thing going on. It was like a smoother ride just because I guess LOL I know the engine was working smoother because of amsoil oil. if you have a car that will monitor your oil and suggest when you should change it you will notice that it will go longer with amsoil I didn't have a car for 5 years because I was out of the country but once I came back and I got another car, the first thing I did was order amsoil oil and change the oil in this car. it's not expensive you break down the cost of your engine problems it's always comes out cheaper to have amsoil oil in your engine. I am definitely one of those people if something doesn't work I'm not going to use it and I will tell people don't use it.

Great oil for my vehicle engine, also OEM spec.

I won't use any other oil

I only use amsoil for my vehicles. 13 years and 250,000 miles later still running smooth. Thank you

Having been a user of AMSOIL products since the early 1970s I am pleased to say I recently switched over my 2003 Toyota Tacoma with 253,000 miles on it and my 2006 Toyota 4Runner with 168,000 miles on it. After almost three months since I changed the oil there have been no oil leaks or excess using of oil and the engines run just fine.

A Great Product!

Lower friction less emisions better gas mileage mostly to keep the envestment like new

I have been using this oil for a few years in my vehicles and am completely satisfied with it's performance. I get a lot more miles between oil changes and it looks almost as clean coming out as it did going in, not all black and nasty like conventional oils. I always use the Amsoil oil filter as well which helps keep the oil filtered and in good condition.

I use this oil in a Pontiac Bonneville GXP with the Cadillac North Star engine. The car has about 80K miles and uses about one quart in about 7k miles