Super Diesel Additive from Liqui Moly is an all in one, performance boosting and fuel system cleaning additive for diesel powered vehicles. It increases the fuels Cetane number for improved ignition which provides better engine performance. It also effectively cleans and lubricates fuel system components such as the fuel pump and injectors which can restore lost performance and lengthen the service life of components.Boosts the fuels Cetane number for improved engine performanceCleans and lubricates fuel pumps and injectors for optimum performanceSmoother running engine with reduced fuel consumptionPrevents the build up of harmful deposits in the fuel system, keeping it cleaner for longerEasy to use, simply add to the fuel tank. The supplied applicator makes this possible without the need for additional funnelsSuitable for diesel vehicles with or without diesel particulate filters (DPFs)250ml bottle treats up to 75 litres of diesel