Acetone improve fuel economy? NO WAY The energy density of small molecule fuels (ethanol or acetone or butanol) is not that high. However, the added oxygen will help the engine burn cleaner.
200 mile per gallon carb? NOPE Internal combustion gasoline engines are inefficient when they have to operate at multiple rpm's. Fact of life. Your doing well getting a large, stationary, single rpm diesel engine to operate at 70% efficiency. Anyway, whatever "patents" the big petroleum companies bought up, they wouldn't honor in places like China and India anyway.
