Cataclean is a completely organic liquid and is enviromentally safe. Cataclean is the latest development in the field of fuel-system cleaners, developed by system products to meet the most enviromental standards. Cataclean rapidly and thoroughly dissolves resin, gum, carbon and similar deposits in the fuel system, lambda probe and catatlytic converter. Cataclean is suitable for both petrol and diesel engines and is also very easy to use. Cataclean not only removes deposits of carbon but also prevents fouling of your catalytic converter.