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 used with unleaded fuel.
Note: Must not be used with engines fitted with catalytic converters.