Castrol Classic GP50 is a premium SAE50 monograde oil. Formulated with high quality mineral oils, plus carefully selected additives, it is ideally suited to older technology and classic car and motorcycle engines.
For pre-1950 performance cars and pre-1970 motorcycles
Traditional low detergent SAE 50 monograde engine oil
Offers excellent high temperature performance
Excellent noise suppression
Very high level of engine wear protection
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