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The standard of quality since 1919.

D-A Lubricant Company® is leading the transformation and creation of the future of lubricant performance and protection. We constantly evolve and improve formulations with innovative chemistry.
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Extreme Protection, Exceptional Performance. PennGrade 1® High-Performance Oil, “The Original Green Oil”TM is the gold standard for high-performance engines. Track tested over time, consumers equate the PennGrade 1® brand with quality and performance.
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Formulated for function.
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