What Are the Reasons for High Fuel Consumption When Using Air Conditioning?

[MatteoLee]

Here are the reasons for high fuel consumption when using air conditioning: 1. Compressor operation increases fuel consumption: Using air conditioning consumes more fuel mainly because the air conditioning compressor requires significant power to operate. The variation in fan speed has a relatively minor impact on power demand. Therefore, within a certain speed range or wind resistance, using air conditioning increases fuel consumption, while turning it off saves fuel. 2. It is related to the car's displacement and speed: For a car with an average fuel consumption of 10 liters per 100 kilometers, using air conditioning can increase fuel consumption by about 2 liters. Tests show that the higher the temperature and humidity, the greater the fuel consumption caused by the car's air conditioning. When the temperature exceeds 20 degrees Celsius, fuel consumption can increase by approximately 10% to 20%, depending on temperature and humidity differences. In extreme conditions, such as temperatures around 40 degrees Celsius combined with high humidity, fuel consumption can increase by up to about 30%.