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.