What are the classifications of lubricating oils and how to choose?
Many owners do not know what kind of lubricants their cars use. Today we will talk about the classification of lubricants. The composition of lubricating oil is base oil and additives, of which the base oil is the majority. Base oil base oil is oil, which can be vegetable oil, petroleum fraction, synthetic oil, or some kind of lubricating liquid. Additive additives are chemical agents. All kinds of additives are mixed in the base oil in a suitable proportion, improving the performance of the finished lubricant, or giving some new properties to the base oil. Lubricating oil from the composition point of view, are some chemicals, but can not be abused, according to the use of occasions, choose the appropriate formula.