Which is More Fuel-Efficient: Using the Air Recirculation or Fresh Air Mode in a Vehicle?
1 Answers
When the air conditioning is on, using the air recirculation mode is more fuel-efficient than the fresh air mode, but the difference in actual usage is minimal. The fuel consumption in fresh air mode is approximately 0.1 liters more per 100 kilometers compared to air recirculation mode, which is negligible. Below are the relevant details: Always use the fresh air mode when parked. If you need to rest inside the car with the air conditioning on, make sure to switch to fresh air mode periodically. Continuous use of air recirculation can lead to carbon dioxide poisoning. Air recirculation is like an air-conditioned room with all windows and doors closed, providing excellent cooling but eventually making the air feel stuffy. On the other hand, fresh air mode is like an air-conditioned room with windows and doors open, maintaining air circulation for fresher air, though the cooling effect is significantly reduced.