Gas additives and fuel saving gadgets
Myth: Advertisements for products promising to reduce gas mileage are everywhere. One of the most commonly used ones is acetone, the chemical found in nail polish remover. Some people claim it helps them save gas.
Fact: The EPA has tested hundreds of products over the years that promise to raise fuel efficiency and hasn't found one that has made a significant difference. Acetone, in particular, is corrosive and can damage your fuel system.