Nulon Pro-StrengthPetrol Fuel System Extreme Clean contains the world's leading polyetheramine fuel system cleaning technology that cleans fuel injectors, combustion chambers and inlet valves of power-robbing carbon deposits in just 1 tank. This product improves acceleration, fuel economy and promotes easier starting and smoother idle. Performance tested and proven. Try Pro-StrengthPetrol Fuel System Extreme Clean and feel the performance improvement.