Monograde viscosity Truck & Bus Engine Oils

Choose the right monograde oil for your engine.

What oil is right for my truck? Find out with our Oil selector.

CASTROL CRB MONOGRADE 10W CF

SPECIFICATIONS & APPROVALS

API CF

CASTROL CRB MONOGRADE 30CF

SPECIFICATIONS & APPROVALS

API CF

CASTROL CRB MONOGRADE 40 CF/CF-2

SPECIFICATIONS & APPROVALS

API CF/CF-2/SF

Always consult your vehicle handbook to make sure you find the correct engine oil for your vehicle.