Gumout 510021W-6PK Fuel System Cleaner, 6 Pack

Gum out Fuel Injector and Carburetor Cleaner keeps deposits from forming to maintain performance and fuel economy. Carbon build-up from combustion can clog fuel injectors and carburetors, limiting the amount of fuel that reaches the engine. Gum out Fuel Injector and Carburetor Cleaner prevents carbon build-up on indirect fuel injectors, carburetors, intake valves and ports to maximize performance and reduce emissions. Oxygen sensor safe and safe for use in turbocharged and supercharged vehicles. It will not void OEM/manufacturer’s . Directions: Add entire bottle to nearly empty gasoline tank, then fill tank with up to 21 gallons of gasoline. For best results, do not refill tank until near empty. Use every 3, 000 miles.