Cleaning additive that can be added directly to the lubrication circuit. Thanks to this additive, compression increases, the engine runs cleaner, produces fewer polluting emissions, is more protected and offers better performance. It also reduces fuel consumption and removes deposits and debris from piston rings, nozzles, valve lifters and valve train. Engine Clean effectively dissolves contamination and deposits from the oil system. These are then mixed with the oil for easy removal during the oil change. Motul Engine Clean features highly effective anti-friction properties that reliably protect the engine during the cleaning process.