Customer Ratings & Reviews

This product is amazing. I have been using it for three years now, and the results are the exactly what is promised. I used a bottle every 3000 miles in all three of my cars.

Noticed a change in my gas mileage right away!!!

Every time I use this, my vehicles run better and mpg goes up as well. Recommend highly

Smoothed out the idle and throttle response improved. I don't recommend using this all the time, but I think it is a must with every few oil changes.

I use this every oil change, works great

l usually sad a bottle to tank gas every 5,000 miles to prevent any trouble with gas and engine

Seen immediate results when I put this in my truck. Improved the idle better than several other products that I have tried.

Put it in gas as per directions, drove it around in my 2012 work van, 140,000km. Normal average consumption is 11.8 to 12.4L/100km, and I fell in that range for the treatment tank, and the following tank. Can't say if it cleaned anything out, but I can say it didn't help mileage.

Use it in all my vehicles, snowmobiles, motorcycles, and other gasoline powered stuff.

I used on a 2008 Mercedes Benz c300 and got great results.

smoothed out my idle and the car has a bit more zip now!

It actually works amsoil is a excellent product I use amsoil in every car I own. From this to there oils.

This is the best fuel treatment hands down

My friends & I use this product every 5000 miles & we love it !

I dont use it all the time but every time that I have my freeway MPG jumps from about 27 to about 30 1999 C5 Corvette.

You put it in your gas tank and it leaves through you tailpipe ..... How can I review a gasoline additive? I "think" it's helping but I'm not sure.

Great product when used as directed.

I use PI every 5,000 miles to keep my direct injection fuel system clean.

Amsoil products are great. Amsoil as a company, poor. Always charging more than the total paid after the items ship, shipping cost through the roof, taxing shipping... Free gifts now!! Yeah, never saw one of those...

I bought a new to me 2014 F-150 FX2 with all the bells and stuff. I have been using the Amsoil products for years, and really like the performance that I get out of them. My hats off to the guys that make our cars and trucks not only run better but last a heck of a lot longer. Very satisfied Pro shopper!!