Why stop at just a little acetone? Put 95% acetone and 5% gas. You will get nearly unlimited miles to the gallon, because you will end up pushing your car everywhere you want to go.

Don't buy into the hype, EVERYONE knows the vortec wind tunnel swirly thing is the only REAL way to increase you gas mileage.

You would probably get better fuel mileage results by simply inflating your tires to their proper pressure when they get low.