Full Synthetic 15W-40 CJ-4 Heavy Duty Motor Oil

Our Full Synthetic 15W-40 CJ-4 Heavy Duty Motor Oil is engineered for high-performance diesel engines operating under severe service conditions. Made from premium synthetic base oils and a cutting-edge additive package, it provides outstanding wear protection, superior thermal stability, and longer oil life compared to conventional and synthetic blend formulations.

The 15W-40 viscosity grade ensures excellent cold-start performance and rapid oil flow at low temperatures while maintaining a durable protective film under high operating temperatures and heavy loads. This makes it an ideal choice for year-round use in demanding on-highway and off-highway applications.

Certified to API CJ-4 specifications, this oil is designed to protect advanced emissions systems, including Diesel Particulate Filters (DPF), Exhaust Gas Recirculation (EGR), and Selective Catalytic Reduction (SCR) systems. It offers superior soot handling and deposit control, helping maintain engine cleanliness and extend service intervals.

Key Benefits:

• Maximum protection against wear, oxidation, and oil breakdown

• Advanced soot control for cleaner, more efficient engines

• Extended oil life for reduced maintenance costs

• Compatible with modern emissions technologies (DPF, EGR, SCR)

• Ideal for severe-duty and extended-drain applications

Perfect for fleets, construction, and industrial equipment requiring a full synthetic 15W-40 CJ-4 heavy-duty oil for superior durability and performance.