A product of D-A Lubricant Company, PennGrade 1® High Performance Oil is “The Original Green Oil.®" With its tenacious clingability and enhanced levels of zinc and phosphorous chemistry, PennGrade 1® gives your hard-working engine the performance and protection it demands and deserves.
OFTEN COPIED, NEVER DUPLICATED.
It is the same unique base oil cut and the specially selected high-zinc, high-phosphorus formulation that’s been known and trusted by high-performance engine builders and vehicle owners for decades.
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