What is the most fuel-efficient temperature for car air conditioning?

1 Answers
MacJoshua
07/30/25 4:46am
The most fuel-efficient cabin temperature is 26°C. Proper air conditioning usage tips: 1. Optimal timing for turning on AC: The first action after entering the car should be opening windows and activating the external circulation to expel hot air. Switch to internal circulation only after the cabin temperature drops. 2. Turn off AC during prolonged parking: When the cabin reaches a comfortable temperature, temporarily turn off the AC and open windows for ventilation. 3. Never turn off engine before AC: Several minutes before reaching your destination, turn off the AC while switching to natural air flow. This allows the AC ducts to regain ambient temperature and maintain system dryness. 4. Alternate between circulation modes: Internal circulation can be used but not continuously. Initially use external circulation when starting the AC, then switch to internal after cooling, periodically toggling between both modes.
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