PRO X SYN BLEND 15W40 is an excellent quality heavy duty CK-4 motor oil formulated for all modern diesel engines, and is particularly suitable for vehicles with emissions equipment such as Diesel Particulate Filters and Selective Catalytic Reduction systems.
This product suits heavy-duty trucks, medium-duty vehicles, off-road equipment, and generators, meeting API CK-4 or SN specs and 15W40 viscosity needs. Suitable for all 4-stroke diesel and gasoline engines requiring API CK-4 or SN (or prior class) specifications.