Why is Engine Oil Always Low?

[OBrayden]

Engine oil always being low is due to the fact that a car's engine consumes a certain amount of oil. If the oil consumption is within the normal range, there is no need to worry. When the engine is running, the internal temperature is relatively high, causing some oil to evaporate. This evaporated oil enters the oil-gas separator, but the separator cannot completely remove all oil vapor, leading to a reduction in oil levels. Engine oil is the lubricant used in engines, composed of base oil and additives. The dangers of insufficient engine oil: 1. Can cause cylinder scoring; 2. Leads to poor lubrication, resulting in component wear, while excessive oil can increase operational resistance.