Castrol Valvemaster

Valvemaster provides the best protection against valve seat recession after lead, while keeping your fuel system clean and providing excellent corrosion protection. Particularly suited to older vehicles with a compression ratio less than 8:1. Should only be used in vehicles that are not fitted with a catalytic converter.

All products in the Valvemaster Fuel Additive range contain Etha-Guard. Etha-Guard counteracts ethanol’s hygroscopic nature, preventing moisture and damage to your fuel system, stabilising E5 & E10 petrol.