What is the reason for the prompt to change the engine oil as soon as possible?

[DerekMarie]

The reasons for the prompt to change the engine oil are: 1. The engine oil is insufficient and needs to be changed. 2. Insufficient engine oil volume reduces the oil pump's output or causes the pump to fail to draw oil due to air intake, leading to a drop in oil pressure. 3. Another possible reason is the improper selection of engine oil. If the wrong type or grade is used, the engine may experience increased leakage due to the oil's low viscosity during operation, thereby reducing oil pressure. Below is related information: 1. Engine oil serves functions such as lubrication and friction reduction, auxiliary cooling, sealing to prevent leaks, rust and corrosion prevention, and shock absorption, all of which protect the engine. 2. Engine oil, motor oil, or engine lubricant is a substance enhanced with additives in base oil, primarily containing anti-wear additives, detergents, dispersants, and multi-grade oil viscosity index improvers. 3. The main functions of engine oil are to reduce friction and wear on moving parts and to remove sludge (one function of dispersants) and varnish (function of detergents) from the engine.