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2026. 6. 30. 작업
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What actually happens when there is way too much oil in a car engine?
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With way too much engine oil in the engine, the problem is that the crankshaft can hit the oil in the bottom of the crankcase when the engine is running. Since the crankshaft is spinning fast, even at idle, each time it slaps the surface of the oil, it will create some bubbles in the oil as the air just behind the spinning crankshaft lobe gets dragged under the surface of the oil. It doesn't take long to get a whole lot of bubbles and the engine oil becomes all frothy and full of bubbles. Since all oil pumps are designed to pump liquid rather than (compressible) gas, even though the pump is still operating, it's literally sucking air instead of pumping vital engine oil. The net effect is that the oil doesn't get delivered to the places it's supposed to go, so a gross excess of engine oil can kill your engine by the exact same cause as not having enough engine oil. With that said, if you put in, say, a quart too much, it's probably not going to be a problem (depending on the type and ca
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