Gumout All-In-One Complete Fuel System Cleaner uses P.E.A. (polyetheramine) to effectively remove carbon deposits other products can’t for improved performance across the fuel system. Engine performance is affected by everything from carbon deposits and corrosion to heat and friction. All-In-One also helps extend the life of key engine parts by conditioning fuel to fight corrosion, and helps improve horsepower and fuel economy by reducing friction in the upper cylinder.• Improves Fuel Economy• Reduces Friction & Wear• Cleans Entire Fuel System• Fights ethanol damage• Restores horsepower• Prevents deposits• Lubricates upper cylinder• Use every 5,000 km