Wynns Diesel System Cleaner is a diesel fuel treatment developed to clean and lubricate pumps and injectors. • Cleans pumps and injectors. • Restores original spray pattern resulting in a better combustion. • Reduces black smoke (soot particulates) due to a cleaner injection system. • Compensates lack of lubricity of low sulphur fuels. • Prevents fouling of the fuel filter. • Protects against rust and corrosion. • Reduces diesel knocking noise. • Does not harm catalytic converters and soot filters. • For all diesel engines with or without turbocharger. • Add one bottle of 325 ml to the diesel fuel tank every 7.500 km to 10.000 km or at each service.