Improves upon previous generations of Octane Boosters by incorporating the latest additives for cleaning fuel injectors, intake valves and combustion chambers. Reduces motor and research octane level requirements to regain engine power and gas mileage. Reduces rough idling and allows quick starting and acceleration. Dissolves varnish, gum and sludge deposits to reduce emissions and smoke. Controls carburetor deposits, icing and stalling in cold weather. Does not Contain poisonous methyl alcohol (Methanol).