Which Consumes More Fuel: Opening Windows or Using Air Conditioning?

[SanKatherine]

For most vehicle models, opening windows is more fuel-efficient than using air conditioning at speeds below 40km/h, while using air conditioning is more fuel-efficient than opening windows at speeds above 80km/h. Between 40-80km/h, the difference is negligible. Here are some precautions when using car air conditioning: 1. Air convection: When turning on the air conditioning or heating, use the mode that exchanges air between the inside and outside of the car, and try to avoid using the internal recirculation mode for extended periods. 2. Enhanced ventilation: For new cars, it's essential to enhance ventilation during the first six months, regularly clean the car's air conditioning system, and strive to maintain fresh air inside the car. Special attention should be paid to avoiding the use of perfumes or air fresheners to mask unusual odors inside the vehicle.