Lubro-Moly Valve Clean (also known as "Ventil Sauber" - Breaks down deposits on valves and in the combustion chamber - Removes and dissolves residues throughout the fuel system - Protects against corrosion throughout the fuel system - Prevents carburetor icing - Proven performance with catalytic converters and turbochargers. For all gasoline engines. Suitable for standard and high-octane gas, leaded and unleaded. 150 ml treats up to 20 gallons of fuel. Comes in a 150ml can. Made in Germany.