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Motul Valve Expert is a lead replacement additive suitable for all engines fitted with soft exhaust valve seats which require lead in the Petrol to lubricate and protect from recession, including: cars, bikes, boats, gardening engines. The phosphorus formulation provides outstanding valve seats lubrication and protects from recession. Better performance than potassium based products and petrol
Protects and lubricates valves and valve seats. Extremely effective in modern four stroke MX bikes. Gives the lubricating effect of lead when usedwith unleaded fuel.