Castrol Classic XXL 40 is high quality traditional monograde engine oil of low detergency. Low detergency can be essential for any unrestored (or unknown condition) engines where deposits may be sealing the engine. Removing these deposits may cause oil leaks and potential oil way blocking.
Castrol Classic XXL 40 is particularly applicable for pre-1950 veteran, vintage and classic cars where the requirement is for an SAE 40 lubricant. It is suitable for both engine and gearbox use. It is also recommended for many single and multi-cylinder pre-1970 classic motorcycle engines under road and competition conditions. Castrol Classic XXL 40 is for use in automotive gasoline engines where an SB performance level is required.
Castrol Classic XXL 40 must NOT be mixed with either Castrol R40 or any other synthetic or castor/synthetic based oils.
