VP Racing Classic Non-Synthetic Racing Oil is formulated with high-quality mineral base stocks and a select balance of additives to deliver superior film strength and wettability of critical engine parts while running or idle. They contain enhanced levels of ZDDP. Also, they are formulated with a strong detergent dispersant package, as well as aggressive rust and corrosion additive to protect engines that run excessively hot and create large amounts of moisture at shut down.