5w40 XPR Racing Oil Case 6 x 1 Quart

Royal Purple 5W40 XPR Racing Oil in a 6-quart case is a full synthetic motor oil engineered for high-performance engines that demand superior thermal stability and wear protection. This premium racing oil is formulated to handle extreme engine temperatures and aggressive driving conditions where conventional and semi-synthetic oils fall short, making it the choice for enthusiasts running modified engines, track vehicles, and performance builds that operate at the limits of their design.

The 5W40 viscosity grade delivers excellent cold-start flow in winter conditions while maintaining robust film strength at sustained high temperatures. Royal Purple's advanced synthetic base stock resists viscosity breakdown under the extreme shear forces generated in high-RPM engines, preserving consistent oil pressure and film protection lap after lap. Each quart bottle in this six-pack allows for convenient top-offs between oil changes or serves as a baseline supply for drivers who track their vehicles regularly and understand the importance of oil condition monitoring during performance use.

This product is intended for owners of high-output gasoline engines—turbocharged, supercharged, and naturally aspirated performance powerplants—where OEM factory fill oils lack the anti-wear additives and thermal stability required for sustained boost or extended redline operation. The case format (SKU ROY06042) provides bulk availability at a practical quantity for shops, serious track competitors, and performance enthusiasts who cycle oil frequently or maintain multiple performance vehicles. Verify compatibility with your engine's specifications before use, as racing oils carry higher ZDDP anti-wear packages than street oils and may require confirmation with your engine builder or manufacturer guidelines.