I'm skeptical too, but not opposed to reading up on it. The article I linked to in post 16 says it eliminates the surface tension of the gasoline in connection to the cylinders & piston allowing it to vaporize more efficiently. Isn't that similar to what an NOS system does - simply makes your gasoline burn more efficiently (just in a different manner.)
But if it is burning/combusting more gasoline than the pistons/cylinders are designed for, wouldn't that create unforseen stress and wear (like an NOS system can.) Or are we talking about gains that are too slight to make much difference?
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.
No, nitrous oxide disassociates in the combustion chamber to provide more oxygen, which allows more fuel to be burned (NOS systems also inject extra fuel), making more power.
But yes, if an engine's FI system is not atomizing the fuel completely (due to, say, dirty fuel injectors) AND acetone makes it easier to atomize the fuel, then it might just improve efficiency. That's IF acetone actually has such an effect. But I find it hard to believe that the EPA and fuel manufacturers wouldn't have stumbled onto such an easy improvement and be using it.