Castrol Valvemaster Plus Fuel Additive

Castrol Valvemaster Plus lead replacement fuel additive with Optimise Plus friction modifier.

The best protection after lead against valve seat recession, Valvemaster's unique phosphorus formula protects your engine under all conditions.

Optimise Plus friction modifier enhances performance and economy and can increase acceleration by up to 3% and economy by up to 2%.

Etha-Guard ethanol stabiliser combats the harmful acid  effects of ethanol fuel and prevents corrosion in the fuel system.

Use with E5 or E10 ethanol blends. 250ml treats 250 litres