Castrol Classic GP50 SAE50 monograde low detergent engine oil in 1 litre is ideal for topping up.
It is packaged in a green metal tin emblazoned with the iconic red Castrol logo
Low detergent SAE50 monograde engine oil, offering excellent high temperature performance, noise suppression and high wear protection.
Castrol Classic Oils are produced to the original viscosities specified in motor manufacturer vehicle handbooks and contain anti wear additives to provide high levels of engine wear protection in veteran, vintage and classic moor vehicles.
The Masterpiece in Oils