Gumout Xtra Fuel System Cleaner (12 oz.)

Gumout Xtra Fuel System Cleaner restores peak performance in one tankful. Cleans fuel tank, injectors, carburetor, intake valves, and ports. Smoothes rough idle, eliminates hesitation, removes carbon build-up, improves acceleration and cold starts, and helps reduce emissions. One bottle treats up to 21 gallons.