What are the differences between the five base oils?

What are the differences between the five base oils?

Lubricating oil is composed of base oil and additives, base oil is divided into five kinds, respectively ⅠⅡⅢⅣⅤ class base oil, Bang master to tell you about these five kinds of base oil is different.

Class I base oil

The production process of traditional solvent refining mineral oil, Class I base oil is basically based on physical process, does not change the structure of hydrocarbons, the performance is directly related to the quality of raw materials, the performance is very general, is the cheapest base oil on the market.

Class II base oil

Hydrocracking mineral oil, Class II base oil is prepared by a combination process (solvent process combined with hydrogenation process), mainly by chemical process, can change the original hydrocarbon structure. Therefore, Class II base oil has less impurities, high content of saturated hydrocarbons, good thermal stability and oxygen resistance, low temperature and soot dispersion performance are better than Class I base oil.

Class III base oil

Deep hydroisomerization dewaxing base oil, Class III base oil is the need to dewaxing raw materials with high hydrogen content, with full hydrogenation process, belonging to the high viscosity index hydrogenation base oil, also known as unconventional base oil (UCBO), far more than class I base oil and Class II base oil in performance.

Class IV base oil

Polyalphaolefin synthetic oil, also known as PAO base oil. The commonly used production methods of class IV base oil are paraffin cracking method and ethylene polymerization method, and the base oil composed of macromolecules is refined through complicated chemical reactions. The molecules are arranged neatly, the oil is of good quality, has a high viscosity index, excellent oxidation resistance and thermal stability, and low volatility.

Class V base oil

Class V base oil, in addition to class I-IV base oil other synthetic oils, including synthetic hydrocarbons, esters, silicone oil and other vegetable oils, collectively referred to as Class V base oil