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The most advanced engine technology. Gumout Multi-System Tune-Up treats all engines with a special blend of premium cleaning agents, anti-oxidants, and corrosion inhibitors. All engines develop performance issues over time, whether they're , diesel or ethanol. Carbon deposits reduce performance and fuel economy. Water and ethanol corrode key engine parts. Gumout Multi-System Tune-Up is the most advanced for all types of engines, from cars to lawn mowers. It cleans and conditions using premium ingredients, like PEA (polyether-amine), to help maximize performance, fuel economy and engine life. Multi-System Tune-Up can be added in the tank, the crankcase or via induction. Gumout Multi-System Tune-Up 16 oz - 510011W * Cleans: GDI/direct and port/indirect fuel injectors, carburetors, intake valves and ports, piston tops, cylinder heads, combustion chamber and crankcase * Conditions: oline, ethanol blend and diesel fuels to fight ethanol and water corrosion, fuel and oil to fight deterioration/destabilization * Prevents: Future carbon buildup * Best for: Maximized performance and fuel economy, reduced emissions, fuel stabilization * US Item #: 510011 * Directions: Add to fuel:For optimal results, add entire can to the tank. Fill the tank with fuel and run to near empty before refueling. One pint treats 18-21 gallons of all types of or diesel fuels. * Add to oil:Add one ounce per quart of oil. Immediately start engine and run for 5-10 minutes to mix completely. * Vacuum Intake Cleaner:May be used with engine decarbonizing equipment through the vacuum system to clean intake manifold, valves and combustion chamber. Follow recommended mechanical procedures for the equipment. * Small 4-cycle engines:Add to oline using ¾ to 1 ounce per gallon of fuel. * Small 2-cycle engines:Add to oline using ¾ to 1 ounce per gallon of fuel. Add 2-cycle oil as recommended by engine manufacturer. Gumout® Multi-System Tune-Up does not replace 2-cycle oil.