Castrol 15AF66 Engine Oil

Buyer fitment guide only intended as reference. Please use catalogue search by vehicle to ensure proper fitment.

• Castrol CRB Multi 15W-40 CK-4 is a conventional multi-purpose heavy-duty diesel engine oil, designed to provide superior protection. Conforming to the strict requirements of the latest engine oil specifications, it can be used in diesel engines where API CK-4 or CJ-4 and below is required. It is engineered to help give long and healthy engine life, giving you peace of mind that your diesel engines are protected in a variety of applications and duty cycles.