TetraBOOST E-Guard Road is a potassium-based lead replacement, octane booster and ethanol corrosion inhibitor.
> Designed for cars without hardened valve seats, to give protection from problems resulting from modern ethanolised petrol. > One 50ml bottle for up to 50 litres of fuel. > Protects against ethanol induced corrosion > Inhibits valve seat recession > Raises octane by up to 2 points
