Is it necessary to warm up the car after adding engine oil?

[StArthur]

It is not necessary to warm up the car after adding engine oil, but it is required before changing the engine oil. The functions of engine oil are: 1. To alleviate friction and high temperature; 2. To reduce gas leakage and prevent external pollutants; 3. To prevent contact between water, air, acidic harmful gases, and parts; 4. To buffer the pressure rise in the engine cylinder port; 5. To flush away dirt generated on the working surfaces of parts. The characteristics indicating the need for an oil change are: 1. Check the viscosity of the engine oil—if there is no viscosity, the oil needs to be changed; 2. The color of the oil turns black; 3. Excessive black particles, metal shavings, or carbon deposits in the oil; 4. The smell of the oil is abnormal.