Volkswagen Tuyue engine oil parameters can be found on the fuel tank. If it is original engine oil, you need to find a dealer to supply it. The tank body will be clearly marked “Safety Viscosity Grade” and “American Petroleum Institute Quality Grade”. Lubricants of different viscosity grades should be selected based on different ambient temperatures and vehicle conditions.
The oil is also called engine oil. Like the blood of the engine, it lubricates the engine. It consists of base oil and additives, of which base oil accounts for approximately 90% and additives approximately 10%. Base oil is divided into synthetic oil, mineral oil and natural animal and plant oil, with mineral oil accounting for more than 90%.
Synthetic oils are obtained by chemical synthesis or refining. The process is complex and the refining cost is high,but mineral oil has unprecedented benefits. Synthetic oil generally has the advantages of higher viscosity index, stronger antioxidant capacity and lower evaporation loss.
The mixture of refined liquid hydrocarbons obtained from mineral oil is mainly a mixture of saturated naphthenes and paraffins. The crude oil is subjected to atmospheric and vacuum fractionation, solvent extraction, dewaxing and hydrorefining.
The production process fundamentally does not change the structure of the hydrocarbons and the properties of the produced base oil depend on the content and properties of the ideal components of the raw materials. During the refining process, impurities cannot be completely removed, so the pour point of the resulting base oil is high, which can be improved by adding a pour point depressantement.
One million subsidies for car purchases