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All old engines equipped with valve seats that are not compatible with unleaded petrol and require lead in the petrol to lubricate and prevent the valves from rising in the seats: Car, Motorcycle, Boat, Garden machinery…
Must not be used for engines equipped with catalytic converters.
The Phosphorus formulation ensures exceptional lubrication of valve seats and prevents valve rise.
Better protection than potassium-based products (Super blue) and other technologies.