What are the types of lubricating oils?

Lubricating oils are broadly categorized into: automotive lubricants and industrial oils. Automotive lubricants are further divided into gasoline engine oils, diesel engine oils, automotive gear oils, automotive brake fluids, and greases, which are commonly seen in auto repair shops and 4S stores. Industrial lubricants are classified into special environments and non-special environments. Special environment oils include food-grade, high-temperature, high-pressure, low-temperature, low-pressure, and corrosive environments, among others.

Oils for non-special environments are further categorized based on the varying needs of different machinery. Examples include general-purpose machine oil, standard hydraulic oil, anti-wear hydraulic oil, ashless anti-wear hydraulic oil, fire-resistant hydraulic oil, low-temperature hydraulic oil, gear oil, turbine oil, refrigeration oil, compressor oil, total-loss system oil, heat transfer oil, cylinder oil, reducer oil, transformer oil, chain oil, sewing machine oil, rust preventive oil, way oil, hydraulic way oil, spindle oil, cutting oil, white oil, power transmission fluid, fast bright quenching oil, and nearly thousands of other types. Each mechanical operating environment differs, and so does the oil used. Factors such as the material of the equipment's structural components, the operating environment of the equipment, etc., all influence the quality of the lubricating oil it requires.

The above is the general classification of lubricants, hope it helps you.