Description
Engine break-in is critical—the first hours of operation determine long-term reliability and performance. PennGrade 1 delivers the zinc and phosphorous chemistry your freshly-built or rebuilt engine needs during this vulnerable period, preventing wear before it starts. Whether you’re a professional engine builder or DIY enthusiast, this high-zinc conventional oil provides the film strength and protection that standard street oils simply cannot match.
- 30W viscosity grade
- High zinc content
- Conventional mineral oil
- Break-in specific formula
- 1 quart bottle
- Enhanced anti-foam additives
- Superior film strength
- Detergent/dispersant package
- High-temperature stable
- Bolt-on convenience






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