Customer Ratings & Reviews

I suppose it was fine Really no way to tell This is more of a oil-change maintenance item I add each 7000 miles

I feel for the money .. this product does an excellent job of keeping the fuel system clean

I was skeptical at first and decided to give it a try. I did notice a bump in power and fuel mileage. Now I use it at every oil change!

I purchase PI, every oil change. I feel that my 2010 Tahoe dose benefit from this fluid as it's high in mileage and the environment here is harsh for any vehicles. I really don't see any fuel mileage increase, but it's the engine is running smoother in the cold mornings. It's a nice treat for the "Tank".

I use P.i. in my daily driver every few months. It makes my engine run smooth and it feels peppier! My only complaint is it's a little pricey. I'm hooked though, Customer for life!

I've used the products and can only hope they work as advertised and from on-line reviews. Right now the jury's still out.

I used to use Sea foam, but this product is better and it is less expensive.