How Much Fuel Does Using Air Conditioning Consume?

2 Answers
VanJoel
09/07/25 3:32am
Under normal circumstances, it consumes an additional 1-1.5 liters per 100 kilometers. For vehicles with larger displacement or more interior space, the consumption is slightly higher, approximately 15%-20% more than when the air conditioning is not in use. It is also related to factors such as the set temperature of the air conditioning, the external temperature, the condition of the vehicle, the condition of the air conditioning unit, and the driving skill. Below is extended information about car air conditioning: Air Conditioning Introduction: The car air conditioning system, abbreviated as car AC, is used to adjust and control the temperature, humidity, air cleanliness, and airflow inside the car cabin to optimal conditions. It provides a comfortable riding environment for passengers, reduces travel fatigue, and creates good working conditions for the driver, playing a crucial role in ensuring safe driving. Car Air Conditioning Layout: Different types of air conditioning systems have different layout methods. Currently, integrated heating and cooling air conditioning systems are widely used in passenger cars. The layout involves assembling components such as the evaporator, heater core, centrifugal blower, and control mechanism together, referred to as the air conditioning unit assembly.
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LaKingston
09/19/25 3:00am
I often notice a significant increase in fuel consumption when using the air conditioning during long-distance drives. Especially during hot summer days when the AC is running continuously throughout the journey. Typically, fuel consumption increases by 10% to 20%, depending on the vehicle model and driving conditions. My small SUV burns an extra 1-2 liters per 100 kilometers when using AC in congested urban traffic, while on highways, the impact is slightly less due to relatively lower wind resistance. If you want to save fuel, try turning off the AC and opening the windows at moderate speeds. However, during extreme heat, it's essential to keep the AC on to ensure safety and avoid the risk of heatstroke. The car's AC compressor is driven by the engine via a belt, increasing the load and forcing the engine to burn more fuel. This also relates to AC settings, such as temperature and fan speed—higher settings consume more fuel.
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