What should the temp be set to in a car?

[BenjaminDella]

The temp setting in a car does not have a fixed optimal value and should be adjusted according to the external temperature while driving. More information about temp is as follows: 1. The temp in a car refers to temperature, which can be adjusted via a button. The temp button is usually located on the car's center console, and in some models, it is found near the rear air vents, allowing independent control of the rear air conditioning temperature. 2. Generally, the method to adjust the car's air conditioning for heating or cooling is as follows: There is a temperature adjustment knob on the car's dashboard, with one side marked red and the other blue. Turning the knob fully to the red side provides hot air, while turning it fully to the blue side provides normal temperature air. For cooling, the compressor AC switch needs to be pressed.

[LydiaDella]

Regarding in-car temperature settings, I usually recommend setting it between 24-26°C in summer and 20-22°C in winter. The most comfortable ambient temperature for the human body is around 25°C, so this range neither causes excessive fuel consumption from the AC nor leads to colds due to excessive temperature differences. Especially during long-distance driving, excessively low temperatures can easily cause numbness in hands and feet, which may affect reaction speed. When carrying elderly or children in the car, I would appropriately increase the temperature by 1-2°C, as comfort is more important than fuel efficiency. Here's an interesting fact: for every 1°C decrease in AC temperature, fuel consumption increases by about 5%, so from an economic perspective, it's better not to set it too cold.

[ElliottLee]

Based on my years of experience, temperature settings depend on the season and vehicle condition. In summer when it's extremely hot, first use maximum fan speed to cool down, then adjust to around 25°C once comfortable. For older cars with weaker cooling, you can lower it by 1 degree, but avoid going below 22°C to prevent compressor overload damage. In winter, 22°C is sufficient for heating - higher settings just dry out the air. Auto AC users can simply set 24°C and press AUTO for optimal convenience as the system balances fan speed and temperature automatically. Remember to replace cabin air filters regularly, otherwise even correct temperature settings will feel stuffy.

[DeOscar]

There is no standard answer for car air conditioning temperature, it mainly depends on personal preference. I prefer keeping it at 25°C year-round, as this temperature prevents window fogging and avoids discomfort when exiting the vehicle due to large temperature differences. Practical tests show that below 23°C, the AC compressor starts and stops frequently, which accelerates wear over time. Beginners are advised to use auto mode for a few days first to find their most comfortable setting. In humid southern regions, lowering by 1°C enhances dehumidification, while in dry northern areas, slightly increasing the temperature improves comfort. Additionally, avoid direct airflow to the face as it may cause headaches.

[AidenRose]

Adjusting temperature requires balancing fuel consumption and health. I've observed that setting the AC to 26°C in summer yields the lowest fuel consumption, saving nearly 10% compared to 22°C while maintaining adequate cooling. In winter, cabin heating shouldn't exceed 23°C as engine waste heat suffices. Extreme temperature settings cause issues: excessive cooling may freeze AC lines, while overheating strains the engine. On highways, increase the setting by 1°C as wind resistance reduces AC efficiency. Remember, the temperature dial isn't about extremes—the comfort zone is the sweet spot.

[Amir]

Temperature settings actually follow the same principle as dressing for the weather—when it's 38°C outside in summer, setting the car interior to 24°C creates a comfortable temperature difference that feels just right. I've found that below 22°C, my joints start to ache slightly, while above 26°C, it's easy to sweat. My recommendation is to open the windows for ventilation for 2 minutes first to let the hot air escape before setting the AC to 24°C, which cools the car faster and saves energy. For cars with seat ventilation, you can set the temperature 1 degree higher and use both features together. If you have leather seats, setting the temperature too high can actually make it feel stuffy. Regularly cleaning the AC system also helps maintain more accurate temperature control.