PennGrade 1 SAE 50 Monograde High Performance Oil, 10 Quarts PennGrade 1® Monograde High Performance Oils are specially formulated using high quality PENNGRADE base stocks and select additive technologies to meet the stringent lubricating demands of high-performance, highly stressed, street and racing engines. It delivers excellent shock load and elevated temperature protection to heavily stressed engine parts including bearings, camshafts, rings, and pistons.
