Overview

YIDUN API CI-4 diesel engine oil is developed and manufactured by Baoding Muhai Lubricating Oil Import & Export Co., Ltd. Formulated with high-performance fully synthetic base stocks and advanced heavy-duty additive packages. It outperforms CH-4 grade, specially engineered for Euro Ⅳ diesel engines fitted with EGR exhaust gas recirculation systems. It performs reliably under severe conditions such as long-haul transportation, mining and construction sites with high temperature and heavy dust. It features excellent soot dispersancy, wear protection and high-temperature oxidation resistance to safeguard EGR systems and extend oil drain intervals. The 18L large pail is ideal for bulk maintenance procurement for fleets, mining and engineering enterprises to cut per-liter oil cost.

Key Features

✅ Superior Wear Protection for Continuous Heavy-Duty Operation Advanced anti-wear additives build robust lubricating film on crankshafts, pistons and cylinder liners, reducing metal-to-metal wear during long-distance heavy loads and climbing, extending engine service life.

✅ Outstanding Soot Dispersancy & EGR System Protection High-efficiency soot dispersion technology prevents soot agglomeration and restrains sludge and varnish formation. Protects EGR devices, keeps engine internals clean and ensures stable power output.

✅ Excellent High-Temperature Oxidation Resistance, Longer Oil Service Life Great thermal stability. Resists oxidation and thickening under high temperature, maintains stable oil performance for longer periods and reduces downtime maintenance.

✅ High Base Reserve & Anti-Corrosion, Compatible with High & Low Sulfur Diesel Sufficient base number neutralizes acidic by-products from diesel combustion, protects bearings and cylinder liners, compatible with diesel fuels of different sulfur contents.

✅ Multiple Viscosity Grades for Varied Climate Conditions Available:5W-40,10W-30,15W-40,20W-50, suitable for cold, temperate and tropical regions.

✅ 18L Large Capacity Pail for Centralized Enterprise Maintenance Large-volume barrel reduces frequent repackaging and lowers per-liter cost. Preferred selection for bulk maintenance of transport fleets, mines and construction machinery.

Viscosity / Specifications

5W-40, 10W-30, 15W-40, 20W-50

Application

For Euro Ⅳ 4-stroke diesel engines with EGR system: heavy trucks, buses, excavators, wheel loaders, tractors, diesel generator sets, mining equipment. Backward compatible with CH-4 / CF-4 engines.