PennGrade 1 Synthetic Blend High Performance Motor Oil Whether from the everyday demands of the road, racing or just hard driving, without the right protection, your car will lack efficiency, wear down faster and underperform. PennGrade 1 "The Original Green Oil" has been endorsed for decades by racers, engine builders, and manufacturers. Their Synthetic Blend High Performance motor oil offers tenacious cling-ability and enhanced levels of zinc and phosphorous chemistry to give your hard-working engine the protection it demands. Choose the viscosity needed for your engine.
