A complete combustion process in a four cycle gasoline engine theoretically should only yield carton dioxide and water. For almost a century now, scientists and engineers all over the world have and are still working towards an optimized fuel management system (FMS) for automobiles. We still have a long way to go in order to totally eliminate unburned hydrocarbons and all other harmful emissions. Not only are these emissions harmful to the environment, they also reveal the degree of inefficiency of gasoline engines. This paper discusses the effects of a well prepared fuel on gasoline engines in regard to the combustion process, with specific illustrations and emphasis on Grand Marque Ltd.'s new design of fuel management system and its advantages over presently operating systems.