China Longhai CH-4 Diesel Engine Oil – Premium Protection from Top Suppliers & Factory for Heavy-Duty Performance

Fortified with extreme-pressure anti-wear additives to minimize friction and protect critical engine components (pistons, bearings, camshafts) during low-speed, high-torque operation

Ideal for long-haul transportation, construction, and mining equipment that operates under continuous stress

Specialized additive package maintains protective oil film even under severe pressure conditions

Advanced detergent and dispersant additives prevent sludge, varnish, and piston deposits even in high-soot environments

Maintains engine cleanliness for smooth operation and extended engine life

Superior soot dispersion prevents oil thickening and maintains proper oil flow to critical components

Hydrotreated base oils provide outstanding thermal stability, reducing oil breakdown during prolonged high-speed operation

Resists viscosity thickening to ensure continuous lubrication under extreme heat conditions

Advanced antioxidant additives protect against thermal degradation and deposit formation

Meets API CH-4 specifications for enhanced protection of turbocharged and EGR-equipped engines

Compatible with low-sulfur diesel fuels to help reduce emissions and protect aftertreatment systems (DPF, SCR)

Suitable for both older and modern engine designs requiring robust performance

Optimized viscosity and friction modifiers contribute to better fuel economy

Strong TBN (Total Base Number) retention neutralizes acidic byproducts, extending oil change intervals

Reduces maintenance costs while maintaining engine protection