Liqui-Moly Concentrated Marine Fuel System Cleaner 500ml Application 500 ml is sufficient for 250 l of fuel. Filling the dosage chamber (25 ml) once is sufficient for 12.5 l of fuel. removes deposits from entire fuel system removes carbon deposits from intake valves and combustion chamber saves fuel and reduces pollutant emissions cleans the injection system Highly effective combination of cleaning and preserving additives for 2-stroke and 4-stroke gasoline engines. Removes deposits on injection valves, intake valves, spark plugs and in the combustion chamber and prevents new deposits from forming. For a smoother running engine Eliminates starting problems and rough engine running. Saves fuel and reduces pollutant emissions. For all types of gasoline injection systems and carburetors. For adding to fuel tanks to deal with and prevent problems. 500 ml is sufficient for 250 l of fuel. Filling the dosage chamber (25 ml) once is sufficient for 12.5 l of fuel.