The difference between air compressor oil and ordinary oil

There are significant differences between air compressor oil and ordinary oil in terms of use, composition, viscosity grade, operating temperature range, performance requirements and cleanliness, which determine that the two are not interchangeable. The following is a specific analysis:

1. use:
   • air compressor oil: Mainly used in air compressors, play the role of lubrication, cooling, sealing, etc., to protect the compressor from wear and corrosion.
   • Ordinary oil: Mainly used in automobile engines. In addition to lubrication, cooling, and sealing, it also has a cleaning function, which effectively removes carbon deposits, sludge and other impurities inside the engine and prolongs the life of the engine.
2. Ingredients:
   • air compressor oil: Mainly composed of mineral oil or synthetic oil, emphasizing oxidation resistance and corrosion resistance to meet the needs of long-term operation of the compressor.
   • Ordinary oil: In addition to mineral oil and synthetic oil, a variety of additives are also added, such as anti-wear agents, detergents, dispersants, etc., to improve its performance and meet the requirements of complex working conditions such as high temperature and high pressure of the engine.
3. Viscosity grade:
   • air compressor oil: The viscosity grade is usually low to reduce the resistance of compressed air and improve compression efficiency. However, the specific viscosity selection should be determined according to the type of air compressor, working pressure and operating speed.
   • Ordinary oil: The viscosity grade is various, which is determined according to the design of the engine and the climatic conditions of the area where it is used. For example, in cold areas, low-viscosity oil is required so that the engine can start smoothly in a low-temperature environment; in high-temperature areas, high-viscosity oil is required to maintain high-temperature lubrication performance.
4. Use temperature range:
   • air compressor oil: It can usually work in a relatively low temperature environment, because the working temperature of the air compressor is usually lower than that of the car engine. It must maintain good fluidity at low temperatures to prevent the increase in viscosity due to low temperatures from affecting the lubrication effect.
   • Ordinary oil: It needs to adapt to the higher temperature of the automobile engine and have good resistance to high temperature oxidation, otherwise it is easy to form carbon deposits and sludge in the engine, which will affect the normal operation of the engine.
5. Performance requirements:
   • air compressor oil: Pay more attention to anti-oxidation, anti-wear and anti-foam, to ensure that the air compressor running for a long time, the oil quality is stable, reduce component wear, and avoid the impact of bubbles on equipment performance.
   • Ordinary oil: In addition to good anti-wear performance, it must also take into account low-temperature starting performance, high-temperature lubrication performance and compatibility with engine components.
6. Cleanliness requirements:
   • air compressor oil: Due to the relatively simple internal structure of the air compressor, the cleanliness requirements for the oil are relatively low.
   • Ordinary oil: The internal structure of the automobile engine is complex, and the cleanliness of the oil is high, and it is necessary to effectively remove impurities such as carbon deposits and sludge.