PennGrade Motor Oil "THE ORIGINAL GREEN OIL" was Brad Penn Motor Oil
PennGrade 1 is specially formulated using high quality PENN-GRADE base stocks and select additive technologies that meet the stringent lubricating demands of high-performance street and racing engines. This oil delivers excellent shock load and high temperature protection in heavily stressed engine parts including bearings, camshafts, rings and pistons. PennGrade 1 reduces internal friction, allowing for increased horsepower output. PennGrade 1 also provides excellent anti-foaming and shear stability characteristics, high temperature protection from thermal breakdown, superior film strength and strong anti-wear properties.