An effective mixture of additives used to clean and maintain fuel systems of injected or carbureted gasoline engines. Cleans injectors and the combustion chamber, restores proper fuel atomization and improves engine efficiency. Suitable for use as problem solver and for preventive maintenance. Suitable for use in all 4-stroke gasoline engines, with or without turbochargers. Safe for use with catalytic converters and particulate filters (GPF). Contents (500 mL) is sufficient for 25-70 Liters (7 gal. to 18 gal.) fuel.