How to drive a car air conditioner to save fuel?

The fuel consumption of automobile air conditioners is as follows:

Whether automobile air conditioners can save fuel is relative to refrigeration air conditioners. Because the automobile heating air conditioner does not need oil consumption, it uses the heat generated by the engine to enter the air conditioning system for heating, so it does not need to turn on the compressor for heating in winter, so it does not occupy the power of the engine, that is, it does not need to press the A/C key, otherwise it will waste gasoline.

For small-displacement vehicles below 2.0L, as long as the refrigeration air conditioner is turned on and the A/C key is turned on, the power of the vehicle will be affected. The bigger the air conditioner is turned on, the worse the power will be. This is because the air conditioner occupies a part of the power of the engine, and only the engine can drive the compressor of the refrigeration air conditioner, and the engine works on gasoline, so turning on the air conditioner will consume fuel.

In hot summer, many car owners like to sit in the car with air conditioning on to cool off. Although it is comfortable for the time being, it is only afterwards that we know how high the fuel consumption is. When idling, the engine initially keeps the lowest power. After the air conditioner is turned on, the engine needs to provide more power. But when idling, the engine speed is not high, so it needs more gasoline and consumes more fuel.

Try to avoid idling the air conditioner for a long time, because the fuel consumption of idling the air conditioner is higher than that of normal driving.