Motul Fuel System Clean Auto is a petrol additive to be added directly in the fuel tank. Thanks to this additive, engine runs cleaner, creates less pollutants emissions, is more protected and offers higher performances. This product works as a contamination remover in the fuel system, cleaning from the tank to the combustion chamber. It will also dissolve resins and gums in carburetors and injection systems. It lubricates and protects the upper cylinder as well as it removes coking and unburned carbon residues. It binds moisture and condensed water throughout the whole fuel system and facilitates winter cold starts.