Classic Racing Oil
Castrol Power 1 R40 is the original, traditional, castor based oil. It provides the ultimate in lubrication. If the best performance possible coupled with reliability is the aim, then the remarkable stamina and great film strength of Castrol R40 provides a valuable margin of safety at ultra high speeds and temperatures. Primarily designed for the racing world; however it's unique properties also benefit private owners interested in high performance.
•Castor based lubricant
•SAE40
•For high performance and competition
•Do not mix with mineral or synthetic oils
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The oil with the famous smell, evocative of racing in a bygone time. Castrol R40 remains a popular choice today due to the strength that the castor provides. It can be used in both two and four stroke applications on track or road. It should not be used interchangeably with other engine oils - if you have any questions regarding its use then please get in touch with our technical team first.
Free delivery on orders over £50. See Delivery & Returns page for further details
Castrol Classic Oils are specially formulated in the style of the original products. Using traditional mineral oil and a low detergent formulation, Castrol Classic Oils are the right choice for your cherished classic or vintage vehicle.
Older engines have very different requirements to modern engines. With larger oil galleries and a greater reliance on splash and cling properties, seals made from traditional materials, and the risk of carbon gum and varnish, you need to be sure that your oil will perform as the vehicle manufacturer originally intended.
With the most appropriate and carefully balanced additive technology to provide the best protection and performance for classic engines, Castrol Classic Oils are your premium lubricant.