Engines are subjected to extreme loads even under normal driving conditions such as town and commuter traffic, short journeys and traffic jams. This sort of use causes the build-up of deposits on valves, in the combustion chamber and in the carburetor. Valve Clean cleans valves, injection systems, intakes, carburetors and combustion chambers and keeps them clean. Clean engines save fuel. Promotes optimum engine performance and fuel utilization. The combustion produces a lower level of pollutants and the engine is spared. Protects against corrosion and carburetor icing. Tried and tested in turbo-chargers and catalytic converters.