What happens if a car runs without engine oil?

1 Answers
McGrace
07/29/25 8:06pm
If a car runs without engine oil, it can lead to conditions such as engine crankshaft seizure, cylinder scuffing, and bearing shell ablation in the engine. Engine oil not only serves a lubricating function within the engine but also plays roles in heat dissipation, cleaning, and sealing. Without engine oil, all components operate in a state of dry friction, generating extremely high temperatures instantly, which may cause ablation or melting of these parts. During engine operation, oil forms a protective film on the surfaces of various components, preventing direct contact between them. This ensures the engine does not suffer from abnormal wear and keeps the temperature between these components from becoming excessively high.
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