VEHICLE MAINTENANCE > Safe for all engines, Cataclean original 8-in-1 engine cleaning system has been scientifically formulated to help your vehicle engine run better and last longer. Adding Cataclean as part of your regular vehicle maintenance routine to remove carbon build up improves fuel economy, reduce emissions, restores performance and protects catalytic converters CLEANS & PROTECTS > Cataclean cleans, restores & protects the fuel tank and lines, fuel injectors, catalytic convertors, diesel particulate filters (DPF), exhaust gas recirculation valves, oxygen sensors, combustion chambers & intake and exhaust valves REDUCE EMISSIONS > Regular use of Cataclean engine cleaning system can reduce emissions by up to 60% which can help prevent to MOT emissions failures and reduce air pollution ENGINE PERFORMANCE > Using Cataclean fuel system cleaner restores engine performance, reduces vehicle maintenance costs and reduces fuel consumption, improving MPG fuel efficiency USAGE > Add 500ml of Cataclean fuel additive per 15 litres of fuel every three months for optimum results