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Knapp Energy & PennGrade1 High Performance Oils support the 23 annual “Muscle Cars Plus Car Show”…

Knapp Energy, Inc. has partnered to donate PennGrade1 10w30 High Performance Oil – “The Original Green Oil”

to help the WEST MI MUSCLE CAR CLUB – benefitting charities… Check out the September 10th show at the Gilmore Car Museum!