Can the car still run without engine oil?

1 Answers
HarleyFitz
07/30/25 1:35am
No. Engine oil plays a crucial role in lubricating and cooling the engine. If you continue to drive without engine oil, the lack of lubrication will cause the engine components to rub against each other and sustain damage. Additionally, without the cooling effect, the engine may experience phenomena like burning the crankshaft or bearing shells during high-speed operation. Driving without engine oil leads to poor lubrication and, in severe cases, can cause engine seizure due to the absence of lubrication. The less oil there is, the more severe the consequences. When the engine is restarted, dry or semi-dry friction may occur between the cylinder and piston, accelerating component wear and significantly increasing starting resistance, making it difficult to start. Engine oil primarily serves the following functions: 1. Lubrication: The main role of engine oil is to provide proper lubrication for the engine's pistons, bearings, and other components. 2. Sealing: During the "power" stroke, it prevents high-temperature, high-pressure gases in the combustion chamber from leaking into the crankcase through the gap between the piston and cylinder. 3. Heat dissipation: When the engine operates at high speeds, friction between high-speed components generates significant heat. This heat is absorbed by the oil flowing through the gaps between components and carried to the oil pan or oil cooler, where it is dissipated into the air. 4. Rust prevention: Engine oil protects metal components from corrosion. 5. Cleaning: It filters out impurities and metal wear particles generated during engine operation through the oil filter, keeping the lubrication system clean.
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