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Derin Diesel Engine Oil Heavy Duty Motor Lubricant CH-4 15W40/20W50 Acea E5 E7 for Trucks Synthetic OEM Manufacturer. Multi-Grade Viscosity Options: Available in SAE 15W-40 and 20W-50 for various temperature ranges. Superior Cleaning Ability: Reduces carbon deposition and prevents machine filter clogging. OEM and ODM Acceptance: Full customization support for packaging, logo, and product specifications. Anti-Corrosion Protection: Prevents acid corrosion caused by fuel combustion with high alkali value. Stable Oil Film Formation: Maintains strong power and reduces engine wear effectively.
