What happens if the engine runs out of oil?

[VonRicardo]

The effects of running out of engine oil are: 1. The lubrication effect will become very poor; 2. In severe cases, the lack of lubrication may cause the engine to seize, and the consequences worsen as the oil level decreases. When the engine is restarted, dry or semi-dry friction will occur between the cylinder and piston, accelerating component wear and significantly increasing starting resistance, making it difficult to start. If the oil runs out, the car will generally exhibit the following symptoms: 1. The oil light on the dashboard will illuminate, so you should add oil immediately when this happens; 2. The engine temperature may rise, and the valves may become noisy; 3. There may also be knocking sounds in the engine.