Royal Purple Industrial Exdura Heavy Duty Engine Oil

Exdura™ HD Engine Oil is a premium synthetic blend lubricant engineered for demanding on-highway, off-highway and stationary diesel engine applications. It is formulated to meet API CK-4 performance requirements, delivering dependable protection for modern heavy-duty diesel engines. Exdura HD supports equipment reliability and efficient operation while helping reduce maintenance demands. Its durable formulation supports optimized oil drain intervals in accordance with OEM recommendations and used-oil analysis.