"On this site, you see that acetone, xylene, neopentane, neohexane and some other products can improve mileage because they have plenty of methyl ions. The methyl ions therefore greatly enhance the probability of successful and complete combustion through the end of the power cycle. This maximizes efficiency and brings emissions to near zero. All my research with fuels boils down to this simple fact that methyl ions can control the burns beautifully. These additives boost BMEP and allow more pressure on the piston and crank when the piston is moving swiftly down the cylinder because this is the point when common combustion is most prone to pooping out. This is where normal combustion needs help."