The type of mineral base oil that is predominantly used for a wide range of lubricant applications, including engine oils, turbine oils, and hydraulic oils, is called mineral oil. Mineral oil is derived from crude oil through a refining process. Mineral oil is commonly used in lubricants due to its desirable properties. It has excellent lubricating abilities and can withstand high temperatures and pressures. Additionally, mineral oil is relatively inexpensive compared to other types of base oils. Engine oils, which are used to lubricate and protect the internal components of an engine, typically consist of a blend of mineral oil and various additives.
These additives enhance the performance and longevity of the oil. Turbine oils are specifically designed for use in gas and steam turbines. They require a high level of thermal stability, which mineral oil can provide. The mineral base oil used in turbine oils is often further refined to improve its oxidation resistance and reduce the formation of sludge and deposits. Hydraulic oils are used in hydraulic systems to transmit power and provide lubrication. Mineral oil is widely used as a base oil in hydraulic fluids due to its good lubricating properties, high viscosity index, and compatibility with elastomers and seals commonly found in hydraulic systems.