When carbon deposits build up on fuel injectors, intake valves and ports, it can cause engines to hesitate, surge or lose power. It can also have a noticeable affect on fuel economy. Gumout® Fuel Injector Cleaner removes carbon deposits from these key engine parts to maximize engine performance and fuel economy. Learn more about the science behind Gumout.
Oxygen sensor safe. Safe for use in turbocharged and supercharged vehicles. Will not void OEM/manufacturer’s warranty. 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.