Royal Purple engine oils are fully synthetic, and has & always will exceed the toughest industry standard requirements. Royal Purple's engine oil delivers superior protection and improves engine performance, with most engine oils featuring advanced additive technologies to improve the condition of metal-to-metal contact under severe load.
Royal Purple Engine Oil Types:
API - For everyday and fast road use, API combines premium base oils with proprietary additive technologies to create a high performance synthetic oil that optimizes car engine performance.
Break-in - Perfect for running-in new factory engines and freshly rebuilt high performance engines.
HMX - For use in high mileage car engines, HMX is chemically enhanced to revitalize hardened seals, & reducing oil consumption.
HP 2-C - For use in 2 stroke engines, improving performance and reducing wear.
HPS - Specifically formulated to maximize car engine performance, and meet the demands of high performance & modified engines.
Max-Cycle - For use in 4 stroke engines, Max-Cycle is formulated to exceed the demands of highly stressed motorbike engines & transmissions.
XPR - Just as used by professional race engine builders and race teams around the world to increase horsepower & longer engine life, XPR is formulated to withstand exotic fuels such as alcohol, methanol and nitrous oxide (NO2), making it excellent for race car use.