Description
Engine protection under sustained high load demands oil chemistry engineered specifically for racing and hard-driving conditions—not just daily commuting. PennGrade 1 delivers elevated zinc and phosphorous levels that cling tenaciously to critical bearing surfaces, maintaining film strength when temperatures spike and boost pressures climb. If you’re serious about engine longevity, this is the oil your builder chose.
- 10W40 viscosity grade
- Partial synthetic blend
- High zinc formulation
- Enhanced phosphorous chemistry
- Superior film strength
- Anti-foaming properties
- High-temperature stability
- Detergent/dispersant additives
- 1 quart bottles
- Case of 12 quarts
- Bolt-on convenience
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