CK-4 15W-40 Commercial Vehicle Diesel Engine Oil

Our CK-4 15W-40 Commercial Vehicle Diesel Engine Oil is specially blended for modern commercial vehicle diesel engines, including turbocharged and heavy-duty models with EGR, DPF and SCR emission systems.

 

It meets the strict API CK-4 standard and delivers reliable protection in all working conditions, from long-haul highway driving to off-road construction work.

 

This oil keeps your engine running smoothly, cuts maintenance costs and extends engine service life for your commercial fleet.

• All-temperature performance: 15W low-temperature viscosity ensures fast flow and instant lubrication on cold starts, while 40 high-temperature viscosity maintains a stable oil film to prevent wear under high heat and heavy loads.
• Superior protection: Advanced anti-wear and antioxidant additives reduce engine deposits, control oil thickening and lower wear of key parts like cylinder liners and turbochargers.
• Emission system compatibility: Low-ash formula protects DPF and SCR systems from clogging, meeting Euro VI and national VI emission standards.
• Cost efficiency: Excellent oil stability extends drain intervals and reduces oil consumption, cutting overall operating costs for fleets.

We use imported deeply refined base oils and international top-tier composite additives for production. Our advanced blending technology and strict quality control ensure consistent oil performance in every batch. All products pass multiple physical and chemical tests before leaving the factory, complying with global industry standards and OEM requirements for commercial vehicles.

Packaging & Transportation
The product is available in various packaging sizes, including 1L, 10L, 18L, and 200L. All packaging is labeled with API certification marks, product specifications, and a Safety Data Sheet (MSDS). Transportation methods include sea and rail transport, and complete customs clearance documents are provided for international orders. The product should be stored in a cool, dry, and well-ventilated warehouse (temperature -5°C to 40°C), away from direct sunlight and heat sources.

• Custom packaging: Provide flexible packaging options to meet different fleet and wholesale needs.
• Technical support: Our professional team offers free oil selection and usage guidance, as well as after-sales technical consultation.
• Fast delivery: We have a global logistics network, ensuring timely delivery to your designated location with stable supply capacity.
• OEM/ODM service: Accept customized branding and formula adjustment based on your specific market demands.