Damn this is old, like 2002 old. Do a google search on it, lots of people have tried it. I tired it for 8 months and saw no real gain as I filled up at the same gas station (bp) let the pump cut off no topping off, ect. I believe I may still have the excel file, with my mileage. But like ek mentioned the Acetone will eat away at your rubber seals, ect.