Oils intended for lubrication of industrial equipment are separated into an independent group and assigned the General conventional name "Industrial oils". The use of doped industrial oils (with additives) increases the reliability of equipment and its performance, increasing the service life of oils by 2-4 times compared to oils without additives.

All industrial oils are produced on an oil basis.

The range of oils used for industrial equipment and machines is practically wider than the one described in this Chapter. Many oils are used as industrial oils, which are classified by their main purpose as motor, hydraulic, transmission, turbine and other groups. In some cases, it is necessary to use products of non-petroleum origin obtained on the basis of organosilicon, phosphorus, sulfur, fluorine-containing compounds, etc.
Technological progress in mechanical engineering — the development of high-performance, high-precision and numerically controlled automated modules, robots and other reliable equipment — required the creation of qualitatively new industrial oils.

The oil refining industry produces a large range of modern doped industrial oils with improved performance properties: anti-oxidizing, lubricating, protective, demulsifying, etc. The use of doped industrial oils (with additives) increases the reliability of equipment and its performance, increasing the service life of oils by 2-4 times compared to oils without additives.

The designation of industrial oils includes a group of characters separated by a hyphen. The first letter "I", the second uppercase letter defines belonging to the group by purpose, the third uppercase letter — belonging to the subgroup by performance properties and the fourth digit — characterizes the class by kinematic viscosity.

Based on domestic and foreign experience in creating classifications of lubricating oils, studying technical requirements for industrial oils, experience in the development and application of alloyed oils, a technically sound classification of industrial oils was developed for the first time. It is reflected in GOST 17479.4—87 ("industrial Oils. Classification and designation"). The standard takes into account international standards (ISO 3448-75 " industrial Lubricants. Viscosity classification", ISO 6743/0-81 ("Classification of lubricants and industrial oils") and domestic GOST 17479.0—85 ("petroleum Oils. Classification and designation. General requirements.") the unified designation system for industrial oils takes into account their application in various industrial equipment: machine tools, presses, rolling and drawing mills, machines and equipment that use reducers, bearings and other structural elements, hydraulic systems in various operating conditions. Oils intended for lubrication of industrial equipment are separated into an independent group and assigned the General conventional name "Industrial oils". In contrast to engine, transmission and other special-purpose oils, they are designated by the letter "And".

For a long time, there was no technically sound and generally accepted classification of industrial oils in the Russian Federation. Depending on their application, they were conditionally classified into General and special purpose oils. In addition, the oils of each of these groups were divided into three subgroups by kinematic viscosity at 50 and 100 °C. There was a division: by the nature of the source oil - into oils from low-sulfur and sulfur oils; by the method of purification - into oils of selective, sulfuric acid, adsorption purification, leached, etc. When developing alloyed oils, they were designated according to the established rules, for example: IGP series oils — industrial hydraulic with additives; ISP-industrial from sulfur oils with additives, and so on.