Motul Valve Expert.

All old engines fitted with soft exhaust valve seats which require lead in petrol to lubricate and protect from recession : cars, bikes, boats, gardening engines.

Must not be used with engines fitted with catalytic converters.

PERFORMANCE:
The phosphorus formulation provides outstanding valve seats lubrication and protects from recession.

Better performance than potassium based products and petrol.

RECOMMENDATION:
Press on the bottle to fill the upper container and pour the right dosage in the petrol tank before refilling with unleaded petrol.