What happens when a car has low engine oil?
2 Answers
Insufficient engine oil can cause harm to the car. Hazards: When the oil level drops to the point where oil pressure is too low, it can lead to inadequate lubrication of the engine's friction surfaces. This may result in abnormal vibrations, reduced power output, and in severe cases, can cause engine bearing seizure or even engine stalling, posing a danger while driving. Function of engine oil: Engine oil serves as a lubricant. During engine operation, the crankshaft connects to the connecting rod through components commonly known as "bearings," and the crankshaft itself is mounted on the engine block also via bearings. Additionally, the piston rings and cylinder walls experience friction. Without oil lubrication, these components would experience dry friction, significantly increasing the friction coefficient and causing severe wear to engine parts.
If the engine oil is too low, the car will feel off. The engine noise increases, buzzing like it's complaining, because with less oil, the internal parts rub more, generating heat. Once, I didn't pay attention, and the engine almost seized. Later, I learned that low oil levels can also increase fuel consumption, and a warning light might appear on the dashboard. In more severe cases, the engine could be completely ruined, and repairs can be extremely expensive. So now, I've made it a habit to check the dipstick at least once a month—when the car is cold and parked on level ground. Pull it out to see if the oil level is in the middle; if it's low, top it up with fresh oil right away. Remember to use the correct type of engine oil—don't skimp on small costs and risk big problems.
