Heavy Duty Engine Oils

PURUS® Diesel Engine Oil represent the highest level of engine protection and performance. They are formulated to provide improved wear protection and fuel economy, reduce deposits and oil consumption control, soot-related viscosity control, prevention of viscosity loss, and provides excellent protection from thermal and oxidative breakdown. See product sheet for specific OE approvals, recommendations and performance benefits.

Synthetic CK-4 5W30

Synthetic CK-4 5W40

Synthetic Blend CK-4 15W-40

Synthetic Blend CK-4 10W-30

Synthetic Blend FA-4 10W-30

Tri-Fuel CK-4 15w40

Tri-Fuel CK-4 10W-30

Heavy Duty  Fleet Engine Oils

Natural Gas Engine Oil 15W-40