5w40 XPR Racing Oil 1 Quart

The 5w40 XPR Racing Oil 1 Quart from Royal Purple is engineered specifically for high-performance and racing applications where sustained heat, extreme pressure, and extended drain intervals demand superior protection. This synthetic formula is designed for enthusiasts and mechanics who demand the best lubrication for turbocharged, supercharged, and naturally aspirated engines operating at or beyond stock performance levels.

Whether you're running a weekend track car, a street-driven modified engine, or a dedicated race platform, this oil delivers the film strength and thermal stability required to protect precision-machined components under aggressive conditions. Royal Purple's proprietary synthetic technology provides exceptional anti-wear performance and oxidation resistance at elevated temperatures where conventional and standard synthetic oils break down.

The 5w40 viscosity grade offers ideal cold-start flowability—critical for engine startup protection and quick oil circulation—while maintaining robust film strength at operating temperatures typical of modified and racing engines. The advanced detergent package minimizes varnish and sludge formation, keeping valve trains clean and reducing carbon buildup on piston crowns and chamber walls.