Reader Question: Does Acetone Help Increase Fuel Economy?

One of our readers recently wrote: "Did you publish an article on using acetone and ketone in your tank to increase mileage for cars? If you did would you please reissue it? As I recall it was said to use 4 ounces per tank. --Carma"

Hi Carma,

Thanks for writing. The basic idea behind adding acetone to gasoline is to increase its vaporization rate ... on older carbureted vehicles, this may have had some benefit, but on new computer controlled, port fuel injection, tightly-controlled emissions systems ... read our complete answer and learn why some folks add acetone to their tank.