Castrol Classic XL 30 is a 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 XL 30 contains selected additives to control high temperature "varnish", give good anti-wear performance and help prevent the build up of low temperature "sludge". It is useful for cold temperature starting in these vehicles and creates improved oil pressure at high operating temperatures.
Castrol Classic XL 30 is primarily for pre-1950 veteran, vintage and classic cars requiring an SAE 30 lubricant. It is suitable for use in automotive gasoline engines where an API SB performance level is recommended. It is also applicable to a number of manually operated gearboxes, including Wilson pre-selects, fitted to vintage and classic cars.
