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What are the main components of engine oil?

1 Answers

McEmmanuel

07/29/25 4:19pm

Engine oil is primarily composed of base oil and additives. The base oil is the main component of lubricating oil, determining its fundamental properties; additives, on the other hand, compensate for and improve the deficiencies in the performance of the base oil, imparting certain new characteristics, making them an essential part of lubricating oil. The following is an introduction to engine oil: 1. Definition of engine oil: Engine oil is the lubricant used in engines, consisting of base oil and additives. 2. Functions of engine oil: As a type of machinery, engines have requirements for lubricants that share common aspects with general machinery, such as the need for appropriate viscosity, certain levels of oxidation resistance, wear resistance, corrosion prevention, and viscosity-temperature characteristics. The density of engine oil is approximately 0.91×10³ (kg/m³), and it serves to lubricate and reduce friction, assist in cooling, seal against leaks, prevent rust and corrosion, and cushion vibrations in the engine.

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