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

[MilaMarie]

Setting the car air conditioning between 18-22 degrees Celsius in summer is fuel-efficient. Properly turning off the air conditioning while driving: Temporarily turning off the air conditioning during driving helps save fuel significantly, as prolonged use can cause excessive pressure on the condenser, which not only damages the cooling system but also reduces the cooling efficiency. Turning off the air conditioning during traffic jams: Besides turning off the air conditioning while driving, it's also advisable to give the air conditioning a break during traffic jams. Since the engine is idling during traffic jams, the air conditioning operates less efficiently and places a greater burden on the engine. Therefore, it's better to roll down the windows for natural ventilation during traffic jams and turn the air conditioning back on once the car starts moving again. Turning off the air conditioning three to five minutes before reaching your destination not only reduces fuel consumption but also prevents unpleasant odors from developing in the air conditioning system, achieving multiple benefits at once.