How to Turn on the Heating in a Car's Air Conditioning System?

[BraxtonLee]

Method to turn on the heating in a car's air conditioning system: After starting the car, wait approximately 8 to 15 minutes until the water temperature rises to the normal level. At this point, you can turn on the heating. Adjust the air conditioning circulation mode to the internal circulation and switch to the heating mode. Some cars indicate this with a red zone, while others use a sun symbol. Additionally, do not turn on the AC switch. When the car is first started, the engine oil needs some time to lubricate all components. If you turn on the heating at this time, the insufficient internal lubrication of the engine will increase friction resistance, leading to higher engine load and inevitably higher fuel consumption. However, many people mistakenly blame the heating for this. The correct approach is to wait for a while after starting the car until the water temperature rises before turning on the heating.