5w40 XPR Racing Oil Case 6 x 1 Quart

Royal Purple 5W40 XPR Racing Oil in a 6-quart case delivers full synthetic protection engineered specifically for high-performance engines and demanding track conditions. This product is designed for motorsports enthusiasts, serious tuners, and mechanics who demand premium lubrication for modified or competition vehicles operating at elevated RPMs and temperatures.

Whether you're running a naturally aspirated engine pushed to its limits or a turbocharged platform requiring superior thermal stability, this racing-grade formulation provides the viscosity consistency and anti-wear protection necessary to maintain peak engine performance. The 5W40 viscosity rating ensures rapid cold-start flow while maintaining a robust protective film at operating temperature, critical for engines subjected to sustained high-load cycles.

Royal Purple's proprietary synthetic base stock and advanced additive package deliver superior oxidation resistance, preventing viscosity breakdown and sludge formation in extreme conditions where conventional oils fail. Enhanced anti-wear compounds protect valve trains, cam lobes, and bearing surfaces—essential when dealing with aggressive cam profiles, higher valve spring pressures, or modified compression ratios common in tuned engines.