The Original Green Oil®
Born from the legendary Brad Penn® heritage, PennGrade 1® The Original Green Oil® has earned the trust of racers, engine builders and performance enthusiasts for generations. Its unique partial synthetic formula combines the protection of premium base oils with the high-zinc chemistry demanded by classic, muscle and high-performance engines.
Designed for engines operating under extreme heat, pressure and RPM, it delivers exceptional film strength and wear protection where it matters most. From weekend cruisers to dedicated race cars, enthusiasts rely on The Original Green Oil® for dependable performance on the street and at the track. When protection, heritage and proven performance matter, PennGrade 1® continues to set the standard.
Full Synthetic
PennGrade 1® Full Synthetic oils are engineered for today’s high-performance engines and demanding driving conditions. Formulated with advanced synthetic base oils and performance additives, they provide outstanding protection against heat, wear and deposit buildup under extreme operating conditions.
Whether on the street, at the track or under heavy load, PennGrade 1® Full Synthetic delivers exceptional stability, cold-start performance and high-temperature protection. Designed for enthusiasts who demand maximum performance and reliability, it helps keep engines cleaner, stronger and protected mile after mile.
Synthetic Blend
- Legendary high-zinc protection for classic and performance engines
- Trusted by racers, builders and enthusiasts for decades
- Partial synthetic formula with exceptional film strength
- Proven protection under high heat and extreme RPM
- The heritage and performance behind The Original Green Oil®
Full Synthetic
- Advanced synthetic protection for modern high-output engines
- Outstanding resistance to heat, wear and deposit buildup
- Excellent cold-start performance and thermal stability
- Engineered for street, track and heavy-duty performance
- Maximum protection for demanding driving conditions
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Find answers to common questions about viscosity, zinc protection, synthetic blends and full synthetic oils to help you choose the right PennGrade 1® product for your engine.
Our Story
From garage builds to championship race cars PennGrade 1® has earned its reputation through performance, protection and consistency.
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