What are the symptoms of engine oil shortage?

[DeEverett]

When the engine is short of oil, the following symptoms will occur: 1. Poor lubrication: Poor lubrication at the splash lubrication parts inside the engine. 2. Low oil pressure: When the oil shortage leads to excessively low oil pressure, it will cause poor lubrication on the friction surfaces of the engine, resulting in abnormal vibration, reduced power, and in severe cases, may even cause engine "bearing seizure". Engine "bearing seizure" refers to the burning of crankshaft bearings and bearing bush due to poor lubrication, manifested as abnormal engine vibration until stalling. After stalling, the engine cannot be restarted. 3. Increased fuel consumption: When the oil shortage leads to excessively low oil pressure, it can also cause abnormal operation of the engine's variable timing solenoid valve, resulting in symptoms such as abnormal operation, reduced power, and increased fuel consumption.