What kind of engine oil should be used for China VI diesel vehicles?

[AlexanderMarie]

When selecting engine oil for China VI diesel vehicles, it is essential to choose oil that meets the CK-4 standard according to the specifications. Additional information: 1. Engine oil: Engine oil, also known as engine lubricant (English name: Engine-oil), has a density of approximately 0.91×10³ (kg/m³). It serves multiple functions such as lubrication and wear reduction, auxiliary cooling, sealing and leakage prevention, rust and corrosion protection, as well as shock absorption, earning it the reputation as the 'blood' of automobiles. Engine oil consists of base oil and additives. 2. Classification: Engine oil classification is represented by a combination of two letters. The 'S' series denotes oil for gasoline engines, with specifications ranging from SA to SN (in alphabetical order, excluding SI). Each subsequent letter indicates improved performance over the previous one, with more additives included to protect the engine. The further the letter is in the alphabet, the higher the quality grade. International brands typically offer engine oil above the SF grade. The 'C' series represents oil for diesel engines. If both 'S' and 'C' letters are present, it indicates that the oil is suitable for both gasoline and diesel engines.