PennGrade 1® High Performance Oils are specifically designed for Racing, Classic, Historic, Vintage, Hot Rod and Muscle Car engines. 

PennGrade 1® High Performance Oil “The Original Green Oil®” is the product engine builders, racers, classic car owners and manufacturers have come to know and trust for generations.

Reduced internal friction, strong anti-wear and increased horsepower. It delivers excellent shock load and temperature protection to engine parts, while providing:

  • Superior film strength and protection under demanding torque applications
  • Anti-foaming, stability and high temperature protection
  • Detergent and dispersant additives for engine cleanliness
  • Oxidation and foam inhibitors to protect against thermal degradation, air entrainment