Recommended for heavy duty diesel engines requiring API CK-4, CJ-4 and earlier categories, specially formulated of ‘over-the-road’ diesel, turbo-charged diesel engines or gasoline engines. It is backward compatible with previous API Oil categories, and it also provides protection for trucks and buses using compressed natural gas (CNG) or liquified natural gas (LNG). The oil is perfect for heavy duty diesel engines operating continuously under very high speed, high temperatures or heavy load conditions, including both on and off highway, trucking, bus, mining construction, agriculture and marine applications in the world’s harshest environments.
Also available is 10W-40 for diesel engines.
