Our heavy duty engine oils are formulated to assist in maximizing engine life and minimizing wear. Advanced processes and technologies enable heavy duty motor oils to strike a balance between durability, emission control, optimized drain intervals, and improved efficiencies for your equipment.
API CK-4 heavy duty engine oils are a direct successor and replacement for API CJ-4 fluid technology. API CK-4 fluids are fully backwards compatible and supersede CJ-4 snd previous service categories. API CK-4 fluids offer improvements in fuel efficiency, oxidation resistance, viscosity cheer stability, and aeration control over the previous fluid technologies. Our heavy duty oils have been approved by the world’s leading manufacturers.