Royal Purple HPS Series motor oil is specifically formulated to maximize performance and meet the demands of high performance and modified engines. It is fortified with a high level of zinc/phosphorus anti-wear additive and Royal Purpleäó»s proprietary Synerlec additive technology. This unique blend enables HPS to outperform leading synthetics and conventional lubricants.
Available viscosities include: 5W-20, 5W-30, 10W-30, 10W-40 and 20W-50.
HPS is recommended for vehicles no longer under manufacturer warranty and for those seeking a higher level of performance and protection. For vehicles under warranty, Royal Purple recommends its API licensed oils available at retailers nationwide.
Royal Purple HPS Series of motor oil responds to increased pressure with increased viscosity. Itäó»s advanced additive technologies, such as Synerlec, improves the condition of metal-to-metal contact under severe conditions for greater protection.