How Much Fuel Consumption Increases Per 100 Kilometers When Using Air Conditioning?
2 Answers
Using air conditioning increases fuel consumption by approximately 20% per 100 kilometers. Here are some methods to reduce fuel consumption: Enhance vehicle maintenance: Vehicle adjustments and maintenance affect engine performance and driving resistance. Owners should regularly perform routine maintenance at auto repair shops, such as checking tire pressure, wheel alignment, adjusting brake pad and drum clearance, lubricating chassis points, and timely replacing engine oil and inspecting filters. Avoid sudden braking and acceleration: Smooth and steady driving is the most fuel-efficient. During acceleration, avoid slamming the accelerator. The correct method is to accelerate smoothly and maintain a constant speed once reaching the desired velocity.
I've been driving for most of my life, and I feel that using the air conditioning definitely increases fuel consumption, roughly by 1 to 3 liters per 100 kilometers. This is mainly because the engine has to power the compressor, which consumes additional energy. The increase is more noticeable in city traffic, possibly around 20%, while it's less on highways. The vehicle model also has a significant impact—small-displacement cars are more sensitive than larger ones. When it's extremely hot, the compressor runs continuously, leading to even higher fuel consumption. I recommend cooling the car by opening the windows in the shade before turning on the AC. Regular system maintenance is crucial, as a dirty system or insufficient refrigerant can waste more fuel. In short, don't obsess over exact numbers—safe driving is the priority. Using the AC in hot weather prevents heatstroke, but using it wisely can save some fuel costs.
