Longhai CH-4 Heavy-Duty Diesel Oil – Advanced Wear Protection & Engine Cleanliness

✅ Ultimate Wear Protection Under Heavy Loads
- 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

✅ Exceptional Cleanliness & Soot Control
- 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

✅ High-Temperature Stability & Oxidation Resistance
- 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

✅ API CH-4 Certified for Modern Diesel Engines
- 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

✅ Improved Fuel Efficiency & Extended Drain Intervals
- 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

- API Classification: CH-4

- Viscosity Grades Available: 15W-40, 10W-30, 20W-50

- Base Oil Type: Group III Hydrocracked

- Key Additives: Extreme Pressure Anti-Wear, Detergents, Dispersants, Antioxidants

✔ Heavy-duty truck fleets

✔ Construction and mining equipment

✔ Agricultural machinery

✔ Industrial power generators

✔ Turbocharged diesel engines with EGR systems

- Proven Protection: Laboratory tested and field proven in extreme operating conditions

- Cost Effective: Extended drain capability reduces maintenance costs

- Engine Longevity: Keeps engines cleaner for longer service life

- Environmental Compliance: Helps meet emission standards while protecting aftertreatment systems

Trust Longhai API CH-4 Diesel Engine Oil for uncompromising protection and performance in the most demanding applications.