SR50 is designed as a cost effective race oil that fits in between the HR1 and XP4 in terms of service life and anti-wear levels. It is a robust mineral motor oil designed to be used where frequent oil changes are needed to eliminate the build-up of dirt or fuel dilution, such as in dirt track and sportsman bracket racing. It utilises a proprietary anti-wear and friction-reducing additive package to fight valve train wear and internal scuffing. SR50 is ideal for race engines requiring a 20W-50 weight motor oil. It provides consistent protection for flat-tappet engines and prevents lifter skidding in aggressive roller cam valve trains using either needle or bushing lifters.
