Gumout Multi-System Tune-Up is the most advanced treatment for all types of engines, from cars to lawn mowers. All engines develop performance issues over time, whether they’re gas, diesel, or ethanol. Carbon deposits reduce performance and fuel economy. Water and ethanol corrode key engine parts. Gumout Multi-System Tune-Up cleans and conditions using premium ingredients, like P.E.A. (polyetheramine), to help maximize performance, fuel economy and engine life. Multi-System Tune-Up can be added in the gas tank, the crankcase, or via induction.• With advanced P.E.A. (polyetheramine) to effectively remove carbon deposits for improved performance across the fuel system• Cleans complete fuel system• Restores fuel economy• Improves engine performance• Stabilizes fuel and oil• Helps smooth rough idling/pinging• Lubricates upper cylinders• Fights ethanol corrosion• Cleans direct and indirectfuel injectors• Removes moisture• Removes fuel deposits andoil residue