20w50 Racing Oil 1 Quart Semi-Synthetic

Lucas Oil 20W50 Racing Oil in 1-quart semi-synthetic formulation is specifically engineered for high-performance engines that demand robust protection under extreme operating conditions. This premium lubricant is ideal for automotive enthusiasts and race-focused builds, providing the film strength and thermal stability required by modified engines running elevated boost levels or sustained high-RPM operation.

The semi-synthetic blend combines conventional mineral oil with advanced synthetic base stocks, fortified with Lucas Oil's proprietary additive package to resist viscosity shear and oxidation degradation across extended service intervals. This formulation excels at maintaining consistent bearing clearances and oil pressure under load, which is critical for performance engines that may have tighter tolerances and aggressive timing.

The 20W50 viscosity grade provides an ideal balance between cold-start pumpability and hot-oil film strength, making it suitable for naturally aspirated, turbocharged, and supercharged engines. Enhanced detergency helps prevent deposit buildup, ensuring optimal performance during racing and high-stress driving conditions.