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Proven Performance – Vintage Classic Cars and PennGrade1 Performance Oil

Find out why PennGrade1 should be in your classic car for the ultimate engine protection.

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PennGrade1 Performance Oil has many characteristics that make it a great oil for vintage, classic cars and muscle cars from the non-catalytic converter era. Find out why PennGrade1 should be in your classic car for the ultimate engine protection.

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