Overview

YIDUN API CF-4 diesel engine oil is developed and manufactured by Baoding Muhai Lubricating Oil Import & Export Co., Ltd. Formulated with premium synthetic base stocks and heavy-duty additive packages. Designed for 4-stroke heavy-duty diesel engines, it performs reliably under prolonged heavy load, high temperature and dusty harsh conditions. Strong oil film reduces component wear and piston carbon deposits. Widely applied to heavy trucks, buses, construction machinery, tractors and diesel generator sets. The 4L pail is ideal for bulk export procurement for fleets, agricultural and construction machinery markets.

Key Features

✅ Heavy-Duty Strong Oil Film & Wear Protection Heavy-duty anti-wear formula creates robust lubricating film on crankshafts, pistons and cylinder liners to avoid metal-to-metal contact. Stable engine protection during climbing and continuous heavy load, extending engine service life.

✅ Superior Detergency & Soot Control High-efficiency detergent additives keep pistons clean, restrain high-temperature carbon, soot and sludge accumulation, preserve clean engine internals and stable power output.

✅ High-Temperature Oxidation Resistance, Slow Oil Degradation Excellent thermal stability and antioxidation performance. Slows thickening and aging under long-distance high-temperature heavy loads to extend oil drain intervals.

✅ High Base Reserve, Anti-Corrosion & Wide Fuel Compatibility Neutralizes acid by-products from diesel combustion, protects cylinder liners and bearings, compatible with diesel fuels with different sulfur contents.

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

✅ 4L Pail with Ergonomic Handle, Easy Refilling Convenient handle for simple pouring and transportation, well suited for auto parts, agricultural stations and mining equipment export orders.

Viscosity / Specifications

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

Application

Heavy trucks, buses, excavators, wheel loaders, tractors, diesel generator sets, mining equipment and other four-stroke diesel engines.