Does Driving with Windows Open Consume More Fuel?

[HarperLee]

It creates resistance, thus consuming more fuel. When the vehicle speed is below 80km/h, driving with windows open is indeed more fuel-efficient than using air conditioning. However, when the speed exceeds 80km/h, the increased wind resistance from open windows makes it less fuel-efficient than using air conditioning. Here are some fuel-saving driving tips: 1. Avoid opening windows on highways: It is not recommended to open windows for ventilation at high speeds; instead, use air conditioning for cooling. 2. Maintain a steady speed: Try to keep the vehicle speed between 65km/h and 90km/h. 3. Regularly check tire pressure and wear: Insufficient tire pressure or severe tire wear can increase fuel consumption. 4. Reduce unnecessary vehicle weight: Remove items that are not frequently used in the car. Generally, every additional 100kg of weight increases fuel consumption by 4.4%. 5. Use the correct fuel grade: Always refuel with the gasoline grade recommended for your car, avoiding grades that are too high or too low.