CRC Fuel Injector Cleaner removes deposits from injector pintles to allow for better flow and more efficient operation. It cleans carburettors, intake systems, valves, ports and fuel lines, disperses water and improves fuel atomisation. It can reduce knocks caused by deposits and reduces engines’ demands for higher octane fuel. It is safe for use with leaded and unleaded fuel and will not harm catalytic converters or oxygen sensors.