1, don't turn on the air conditioning button. This is also the misunderstanding we just mentioned, because many car owners think that heating is also a part of air conditioning, so they will habitually press the air conditioning switch when using heating. In fact, the A/C key is used to turn on the compressor, that is, to turn on the air conditioner, and it is not necessary to turn on the heater.
2. After the car starts, wait for 3-5 minutes, and then turn on the warm air after the water temperature rises. Because when the car just started, on the one hand, the water tank gradually warmed up, and turning on the warm air at this time would not have obvious effect; On the other hand, it takes some time for engine oil to lubricate all parts. Turning on the warm air rashly will lead to insufficient internal lubrication of the engine and increase the friction resistance, thus increasing the engine load and wasting engine oil accordingly.
3. After a short warm-up, turn on the warm air, and at the same time set the air circulation to external circulation, so that the cold air in the car can be quickly discharged outside the car. After 2-3 minutes, set the air circulation to internal circulation. The advantage of internal circulation is to help the car warm up quickly, and then according to the air quality inside the car, switch the external circulation as needed to adjust the air circulation.
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