Description
Royal Purple Duralec Super 15W40 is engineered to deliver superior film strength and anti-wear protection under the extreme pressures of racing and high-performance driving. The synthetic formulation resists viscosity breakdown at elevated temperatures, ensuring consistent oil pressure and engine protection through extended heat cycles. Whether you’re logging track miles or pushing your engine to its limits, this oil maintains stable performance across a wide operating range.
- 15W40 viscosity
- Full synthetic formulation
- 1 gallon container
- Enhanced anti-wear protection
- Superior film strength
- High-temperature stability
- Reduced sludge buildup
- MPN: ROY04154






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