Treats up to 21 gallons. Your vehicle may experience poor fuel economy, lost horsepower, hesitation, and rough idling. Safe to use with other Gumout fuel additives.
Restores lost horsepower. Gumout concentrated fuel system cleaner helps to: clean the fuel injectors and intake valves. Gumout Concentrated Fuel System Cleaner - 6 oz | CVS Maximizes fuel economy.