DI40 5w40 Synthetic Oil Case 12 x 1 Quart

The DI40 5w40 Synthetic Oil Case 12 x 1 Quart by DRIVEN RACING OIL delivers premium lubrication engineered for high-performance engines and modified vehicles demanding superior protection under extreme conditions. This synthetic formulation is built for builders and enthusiasts who refuse to compromise on engine longevity, whether you're running a naturally aspirated stroker, turbocharged platform, or heavily modified daily driver. DRIVEN Racing Oil has earned respect in the performance community for blending track-proven chemistry with real-world reliability.

The 5w40 viscosity grade provides excellent cold-start flowability at 5-weight while maintaining a robust 40-weight film strength at operating temperature, a critical balance for forced-induction and high-horsepower applications where conventional oils break down rapidly. Synthetic base stocks resist thermal degradation far better than mineral oils, keeping bearing surfaces protected and ring seal contact optimized even during sustained high-RPM runs or boost cycles. The formulation resists sludge formation and oxidation, extending drain intervals and maintaining tight tolerances in precision-built engines where metal-to-metal contact tolerance is measured in microns.

This case of twelve 1-quart bottles suits builders and weekend warriors who service their own vehicles and prefer to stock quality oil in bulk. The DI40 5w40 performs equally well in street engines, road course competitors, and garage builds across domestic and import platforms—anywhere an engine sees elevated load or temperature stress. Compatibility spans conventional and modern fuel-injected engines; verify your owner's manual or builder specifications to confirm 40-weight suits your particular application, as some precision builds specify lighter or heavier grades for optimized performance.