Oil formulations required for modern vehicles are very different from those needed for older vehicles. Oils for modern engines comply with the latest API ratings and specific ACEA and OEM specifications.....

Inadequate detergent can result in gums and lacquers clinging to the hotter engine components, and blocking oil galleries – but too much detergent can cause a build-up of metallic ash in the combustion chambers and piston crowns.

When it comes to maintaining the integrity and performance of your classic car, choosing the right oil is crucial. Now available in the USA, we are proud to present the Castrol Classic Oils range—expertly formulated to meet the unique demands of classic vehicles, ensuring they run as smoothly and efficiently as the day they were built.