Diesel System Cleaner is an additive to diesel fuel developed for cleaning and lubricating the fuel pump and nozzles. Properties: It cleans and lubricates the fuel pump and nozzles. It restores the spray pattern and improves combustion. It reduces smokiness of exhaust gases. It reduces fuel filter clogging. It protects from formation of corrosion caused by water and sulfur compounds contained in fuel. Application: For all diesel engines. Wynn’s Diesel Fuel System Cleaner does not comprise components which damage catalytic convertors. One 325-ml bottle is enough for 50 liters of diesel fuel. Instructions: Add it in the fuel tank each 7 500 - 10 000 km or at each maintenance service.