What happens when a car runs out of engine oil?
1 Answers
When a car runs out of engine oil, it may lead to conditions such as engine crankshaft seizure, cylinder scoring, and bearing shell ablation in the engine. Here are the relevant explanations. 1. Engine oil serves not only as a lubricant but also functions in heat dissipation, cleaning, and sealing within the engine. Without oil, all components operate in a state of dry friction, generating extremely high temperatures instantly, which may cause ablation or melting of these parts. 2. During engine operation, oil forms a protective film on component surfaces, preventing direct metal-to-metal contact. This prevents abnormal wear in the engine and keeps temperatures between components from becoming excessively high.