What Happens When a Car Lacks Engine Oil?

[OJosie]

When a car lacks engine oil, it may experience increased noise, engine cylinder scoring, and abnormal operation of the solenoid valve. Increased Noise: When the engine oil is insufficient, it may lead to excessively low oil pressure, causing the oil pressure warning light on the dashboard to illuminate, alerting the driver. The engine noise may become louder due to the lack of oil, and the engine will also suffer from inadequate lubrication. Engine Cylinder Scoring: During operation, the engine oil forms an oil film on all necessary lubrication points, preventing direct contact between these components and thereby reducing wear. If these rubbing components come into direct contact, it will not only cause severe wear but also generate extremely high heat instantly, as the engine operates at very high speeds. This heat may lead to engine cylinder scoring. Abnormal Solenoid Valve Operation: When the oil level is too low, resulting in insufficient oil pressure, the engine's variable timing solenoid valve may malfunction. This can prevent precise control of the engine's intake and exhaust valves, leading to symptoms such as reduced power and increased fuel consumption.