Review on Pack Of 6 Chevron 65740-CASE Techron Concentrate Plus Fuel System Cleaner - 20 Oz. For Improved Engine Performance And Efficiency by Chad Sornsin

Was very skeptical, but I was able to improve my Escape from 17mpg to 20pmg with the first bottle. Went from 20 to 22mpg on the 2nd bottle. I'm guessing the reason it worked so well is that I had never used anything like this in the past. So, maybe it had crud built up? 17mpg felt like something was wrong with the car, so I started looking into ways to improve it. This worked. Not saying it will help everyone . especially if your car is already well maintained.