Review on Hy-Per Fuel Complete Gas System Cleaner By Rislone by Dave Goodman

I used this product in a 2007 Honda Accord , with a I-4 , VTEC , engine. Miles per gallon had dropped to 23 city 26 highway The car has 247,000 miles on it. I added this to a full tank. I then drove towards Atlanta on I75 @ 75 miles per hour. When I filled up at Half tank left Highway mpg had jumped to 32. Like when the car was new. I improved starting. My main goal was cleaning the fuel injectors. When I returned home I rechecked the car with the computer scan tool. And both long term and short term fuel trims had improved.