Silverhook Gold Edition Petrol Treatment is an advanced detergent additive containing CE+ patented technology which will give the interior of your engine and fuel systems a complete overhaul. In modern petrol engines, treatment of deposits is often difficult. Unlike conventional detergents, this additive will remove deposits in the intake manifold, intake valve, combustion chamber in addition to fuel injectors. CO2 Reducer contains corrosion protection properties to increase engine durability, leading to longer life of the fuel system. In older vehicles, this will also clean carburetors. Safe for use on all petrol engines including 2-stroke.