Should You Turn on AC When Driving in Winter?

[DeLucille]

You don't need to turn on AC when driving in winter. Here's a detailed introduction to car air conditioning: 1. Cold air is produced by pressurizing the refrigerant through the compressor to liquefy and then vaporize for cooling. 2. Warm air comes from the heat generated by the engine during operation to warm the car interior. 3. The AC button controls the air conditioning compressor - turn it on for cold air but keep it off for warm air. 4. In cold seasons when you need to quickly raise the interior temperature: After starting the car, wait until the engine temperature gauge needle points to the middle position, then first turn on the warm air while setting air circulation to external to expel cold air from the cabin. After 2-3 minutes, switch air circulation to internal.

[RemingtonLee]

I pay great attention to safety when driving in winter, and fogged-up windows are the most common issue, which can easily lead to blurred vision and increase the risk of accidents. In such cases, it’s essential to turn on the AC dehumidification and defogging function, as it quickly absorbs moisture and clears the glass. Modern vehicles have well-designed AC systems that consume minimal fuel, and safety is far more important than saving fuel. If the fog is heavy, I keep the AC defogging on until the interior is dry. I also regularly check the air filter and mode settings to ensure the system operates properly, which not only prevents fogging but also protects the interior from mold. Developing good habits, like activating the AC defogging as soon as I start the car, ensures a worry-free driving experience throughout the journey.

[JaceDella]

I prioritize both fuel efficiency and practicality when driving. Using the AC in winter does increase fuel consumption since the compressor has to work. I usually only turn on the AC's dehumidification function when there's high humidity or when the windows fog up; otherwise, the heater is sufficient. This helps reduce unnecessary fuel consumption, saving money and being eco-friendly. Combining recirculation and fresh air modes, or simply opening the windows for ventilation, can achieve similar effects. Remember to set a reasonable temperature, around 20-25°C, to avoid over-reliance on the AC. On sunny and dry days, turn off the AC completely and only use it after rain or in cold weather to balance comfort and energy efficiency.

[GemmaLynn]

I believe using AC in winter enhances driving comfort as it effectively removes interior humidity and prevents window fogging that obstructs vision. With proper climate control settings, the air becomes drier and fresher, especially preventing stuffiness during long drives. I keep the AC dehumidification mode constantly activated to maintain stable temperatures, prioritizing comfort above all. Regular AC operation also prevents musty odors or dampness that could harm health, with simple and convenient operation.