PennGrade Motor Oil and 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.

High Performance Oils: PennGrade 1® High Performance Oils are specifically designed for racing, classic, historic, vintage, hot rod and muscle car engines.

Motorcycle Oils: The best motorcycle oils to keep your motorcycle running at peak performance. PennGrade 1® is the top pick for the best motorcycle oil for your bike.

Gear Lubricants: Prevent wear and oxidation formation with PennGrade 1® premiere gear lubricants. Plus get exclusive access to PennGrade 1® experts and customer service.

About PennGrade 1: Based in Lebanon, Ind., our company has Indiana roots as deep as the traditions and values of the “Hoosier” state. The D-A Lubricant Company has been the proud manufacturer of quality lubricant products since 1919. Today, the D-A Lubricant Company includes the brands PennGrade®, PennGrade 1® as well as D-A Lubricants.

PennGrade® Motor Oil is built from the legacy of PennGrade 1® High Performance Motor Oil, or “The Original Green Oil®”. PennGrade 1® uses a unique base oil cut from Pennsylvania Grade Crude Oil. The oil has a unique green color and the ability to stick and cling to metal parts, offering full film strength and prevent excess wear caused by dry startups. Its enhanced levels of zinc and phosphorous (ZDDP) protect vital engine components such as “flat tappet & roller cams”, and it has been the first choice of engine builders and automotive manufacturers for decades.

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