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 and is designed for Euro Ⅳ diesel engines equipped with EGR systems. Developed for long-haul trucks and mining construction machinery under severe working conditions. It provides excellent soot dispersancy, wear protection and high-temperature oxidation resistance to protect engines and extend maintenance intervals. The portable 4L pail suits overseas auto parts retail and small-batch fleet maintenance.

Key Features

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

✅ Outstanding Soot Dispersancy for EGR Engines High-efficiency soot dispersion technology prevents soot accumulation and restrains sludge and varnish. Protects EGR systems, keeps engine internals clean and maintains stable power output.

✅ Excellent High-Temperature Oxidation Resistance, Longer Oil Drain Interval Great thermal stability, resists oxidation and thickening under high temperature, retains oil performance longer and cuts downtime maintenance.

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

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

✅ 4L Pail with Ergonomic Handle, Easy Handling & Refilling Non-slip handle for convenient pouring and transportation. Ideal for auto parts stores, agricultural stations and overseas retail orders.

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, generator sets and mining equipment. Backward compatible with CH-4 / CF-4 engines.