[Andrewksu]

NO2 only allows you to add more fuel as the oxygen atoms split off during combustion. It's not necessarily more efficient, just more!

I doubt that the acetone creats much power, just maybe a more complete burn. I bet the acetone lowers the flashpoint of the gas and/or better atomization. Avoid using it on a turbo/supercharged vehicle if that was the case, as it would cause detonation.

Sounds like murder on the rubber components of the fuel system.

[gogeo]

Those who are looking for more MPG should convert to synthetic oil, gearlube and ATF. Much safer.

[Sax]

Oh yeah, it's coming back to me now - don't most NO2 systems require you to install a beefier fuel pump? (Just read up on them, never played with them.)

[norraad]

The refiners have caught on to this trick, they're now pumping extra oxygen into the gasoline like a kid at the soda fountain blowing down his straw.

If you weigh a gallon of gas now it would weigh less than last year, and as a bonus you get to pay more!