Customer Ratings & Reviews

My engine and transmission both have responded very well to your products. My engine even runs smoother

Are use Amsoil in everything I own

On all my vehicle's, and all my friends and customers. Thank you for it.

I drive 30,000 miles a year. This saves me a bunch of money on oil changes. Car starts just as easy in winter as it does in the summer.

used this product for years and it keeps my wifes 2004 honda hybrid running like a top. will keep buying amzoil oil until the car dies

It pays for itself in increasing mileage and extended drain intervals- win win, plus all these contribute to less waste oil and sustainable practices

There seems to be a slight advantage using Signature Series over the XL oil. It seems like I get an additional one or two miles per gallon when using Signature Series compared to XL. One thing that is unusual about Signature Series is that it can take on a red tint after a few thousand miles. I was concerned that this might indicate that transmission fluid had contaminated my engine oil (?). Calling customer service and speaking with a technician, I was assured by the technician that this is caused by the anti-oxidants in the oil that sometimes take on a red tint. So far, I'm very happy using Amsoil products and will continue to do so.

Regular use, nothing extreem. My vehicle did have slight idle issue, possibly from gasoline impurities. After switching to Amsoil and oil filter it runs completely smooth and purrs like a kitten.

Works really good gave me better mileage

I always use Amsoil in my cars I race....never had a problem , been using it now for 8 years, five different cars !

Simply the best oil on the market. Only oil I use on my 2014 GT 500 with over 1k rwhp

Have used Amsoil Signature Series for a decade now. Last oil report stated the engine at 76000 miles is "ageing like a fine wine". Also use the 2 cycle oil & it's great!

Great customer service

I invested in a Lexus LX570 that should go a half million miles. The best oil available is a small investment to keep this rig going for a few decades

I have an 08 Harley Heritage Softail twin cam with over 52,000 miles on it. One of tbe biggest issues with these motors are the cam chain tensioner, which wear out and can cause catastrophic engine failure. I opened her up at 50,000 and the tensioners look brand new!! Also run Amsoil in my 99 silverado 4×4 throughout ,engine ,trans,transfer case and both differentials this one just turned over 200,000

I use nothing but Amsoil motor oil in all my cars!

I used to drive a Porsche and the shifting was sticking. i replaced the gear oil with amsoil and it shifted like cutting thru butter.

With Amsoil, I am saving time not waiting at the dealership, not paying them to change my oil, not worrying if my oil cap is tight; now I'm changing it myself every 10,000 miles, gaining 3-5 MPG, and, if I catch the deal, it's delivered to my house for free. All pros, no cons.

I drive 100 miles a day to and from work in a 2011 Chevy Cruze ECO 6sp manual and run Amsoil SS 5W-30 and Wix filters, I have sent this oil off for samples and can safely run 18K intervals with a filter change half way between. This oil is wonderful for the engine and turbo.

I put 200 miles a day on my truck. conventional oils require me to take down time to change to often. with this product I swap out the oil with way less frequency. saving time and money. And my engins run great till 200-250,000 miles. it is a great product .