Wynns Lead Substitute is a dual-action additive for petrol engines. It protects valve seats and reduces wear when using unleaded petrol. It also preserves the fuel in the tank during long-term storage or infrequent use. This lead substitute can be used in LPG engines, motorcycles, lawnmowers, yachts, and outboard motors.

• Forms a protective lubricating film on valves and valve seats, comparable to leaded petrol
• Protects unhardened valve seats against premature wear when using unleaded petrol.
• Prevents fuel breakdown in the tank during prolonged non-use
• Protects fuel against oxidation
• Prevents the formation of deposits in the tank and filter due to oxidation products
• Makes starting the engine easier after a long period of non-use
• Does not damage the catalytic converter
• Is completely soluble in gasoline and has no effect on the octane number