SAINTLEO CK-4 15W-40 Heavy Duty Engine Oil (18L) Product Details
Core Product Positioning
SAINTLEO CK-4 15W-40 Heavy Duty Engine Oil is a fully synthetic high performance lubricant specially developed for modern heavy duty engines. It is strictly formulated to meet the top tier international quality standard, suitable for all heavy duty engines complying with China VI / Euro VI emission standards and below. The formula is optimized especially for vehicles equipped with EGR (Exhaust Gas Recirculation), DPF (Particulate Filter), and SCR (Selective Catalytic Reduction) after treatment systems, balancing environmental protection requirements and ultimate engine protection. It is the ideal lubrication choice for heavy trucks, logistics vehicles, construction machinery, and agricultural equipment.
Core Technical Specifications
This engine oil features a viscosity grade of SAE 15W-40, tested according to ASTM D2422, ensuring easy cold start performance and stable oil film formation at high temperatures. Its kinematic viscosity at 100ºC ranges from 14.2 to 15.5 mm²/s (ASTM D445), delivering strong lubrication under heavy loads and effectively preventing engine wear. The CCS viscosity at -20ºC is controlled below 5000 mPa·s (ASTM D5293), enabling smooth cold start in winter and reducing startup related abrasion.
With a sulfated ash content of 0.8-1.0% (ASTM D874), this low ash formula protects after treatment systems from clogging and extends their service life. The total base number (TBN) is maintained at 9.5-10.5 mgKOH/g (ASTM D2896), which can neutralize acidic substances generated during engine operation for a long time, effectively extending the oil change interval. The flash point (open cup) is above 230ºC (ASTM D92), ensuring high thermal stability and safety under high temperature working conditions.
Product Advantages
1. Excellent Anti Wear Performance: Adopts high quality anti wear additives, forming a durable protective oil film on metal surfaces, reducing friction and wear between moving parts, and extending the service life of key components such as pistons, cylinders, and bearings.
2. Strong Oxidation Resistance: The fully synthetic base oil and high efficiency antioxidants effectively inhibit oil deterioration and sludge formation, keeping the engine interior clean and maintaining stable lubrication performance for a long time.
3. Outstanding Thermal Stability: Maintains excellent viscosity stability under high temperature and high load conditions, avoids oil thinning and failure, and ensures reliable lubrication during long distance transportation and continuous operation of engineering machinery.
4. Environmentally Friendly Formula: Complies with strict emission standards, reduces exhaust pollutants, protects DPF and other after treatment devices, and meets the environmental protection requirements of modern engines.
5. Wide Applicability: Suitable for various heavy duty engines, compatible with different brands of trucks, buses, construction machinery, and agricultural equipment, providing universal and reliable protection.
Application Scope
Widely used in heavy duty commercial vehicles, long haul logistics trucks, engineering machinery (excavators, loaders, bulldozers), agricultural machinery (tractors, harvesters), and other equipment equipped with high power engines. It is especially suitable for vehicles operating under harsh conditions such as high load, long working hours, and large temperature differences.
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SAINTLEO CK-4 15W-40 Heavy Duty Engine Oil (18L) Product Details
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