Is There a Difference Between Setting 1 and 4 on a Car's Air Conditioning?

[SanLeonardo]

There is a difference between setting 1 and 4 on a car's air conditioning. The specific differences between setting 1 and 4 on a car's air conditioning are as follows. Fuel consumption: It will increase fuel consumption, but not significantly. This is because the compressor is driven by the engine's belt, and its speed is only related to the engine. However, lowering or raising the setting by one level only changes the speed of the blower fan inside the car. A higher blower speed consumes more electricity, and the car's electricity can only be generated by consuming gasoline. Power: Generally, the power of a car's air conditioning compressor is not adjustable; it only has two states: on or off. Setting the air conditioning to level 4 will feel cooler than level 1, but this is only due to the difference in heat exchange efficiency, not because the compressor works at a higher power at level 4 compared to level 1.