Should the car air conditioning blue button be turned all the way down?
2 Answers
Car air conditioning blue button should be turned all the way down. Here is an introduction to car air conditioning related content: The meaning of the buttons: Generally, the blue button on the left represents cold air, the red one represents warm air, and the middle one represents moderate temperature. To turn on cold air: Turn the left button towards the blue area to get cold air, and towards the red area for warm air, then press the AC switch. The middle button controls the fan speed, and the one on the far right adjusts the mode, allowing you to direct air to the feet, hands, or windshield, or use two modes simultaneously. White button: The white line on the left adjusts the temperature. If it feels too warm, you can adjust it to the middle. To turn off the air conditioning without turning off the fan, simply close the middle fan button.
Many people tend to crank the air conditioner to the coldest setting (blue end) as soon as they get in the car during summer. However, after 20 years of driving a taxi, I've changed this habit. Setting the temperature too low puts excessive strain on the compressor and significantly increases fuel consumption. Last year, I tested this and found that setting it to the coldest consumes 12% more fuel compared to just 5°C below normal. Moreover, direct cold airflow on joints can easily cause soreness. Now, I usually set it around 23°C, and once the car cools down, I adjust it slightly higher. This way, the compressor doesn't have to work continuously at high load, making it quieter, and the temperature difference inside the car isn't too drastic, avoiding discomfort when getting out. I recommend keeping a thermometer in the car; 25 to 26°C is actually quite comfortable.
