What Grade of Engine Oil Should Be Used for China V Diesel Vehicles?

[AdrianaDella]

For China V diesel vehicles, the minimum requirement is CI-grade engine oil. Using a lower grade can be detrimental to both the engine and the turbocharger. Functions of engine oil: 1. Lubrication: There is rapid relative sliding between pistons and cylinders, as well as between main shafts and bearings. To prevent excessive wear on components, an oil film must be established between these sliding surfaces. A sufficiently thick oil film separates the surfaces of the sliding parts, reducing wear. 2. Auxiliary Cooling: Engine oil has a relatively low specific heat capacity and, being inside the engine, does not inherently provide cooling. However, during engine operation, the heat generated by fuel combustion can be carried back to the oil pan by the engine oil and then dissipated into the air, assisting the radiator in cooling the engine. The actual cooling is performed by the water outside the engine casing. 3. Cleaning: High-quality engine oil can carry away carbon deposits, sludge, and worn metal particles from engine components through circulation, flushing away contaminants generated on the working surfaces of the parts via the flow of the lubricating oil.