Does it cost oil to turn on the warm air in winter?

In winter, many car owners will be concerned about whether turning on the warm air will increase the fuel consumption of the car. In fact, if used correctly, heating the car in winter won’t cost oil.

First of all, it is necessary to understand that the cold air and warm air in the car are produced by two different systems. The cold air is cooled by the compressor, while the warm air is generated by the thermal cycle of the car itself. Therefore, when we turn on the warm air, we don’t need the compressor to work, so it won’t increase the fuel consumption.

However, some car owners may find that turning on the warm air when starting the car will lead to excessive engine load, thus increasing fuel consumption. This is because it takes some time for the engine oil to fully lubricate all parts of the engine when the car is just started. If the warm air is turned on at this time, the internal lubrication of the engine will be insufficient, and the friction resistance will increase, which will lead to excessive engine load and increase fuel consumption.

Therefore, the correct way is to wait for 3 to 5 minutes after the car starts, and then turn on the warm air after the engine water temperature rises. This can ensure that the engine is fully lubricated, reduce friction resistance, and thus reduce fuel consumption.

In short, as long as it is used correctly, turning on warm air in winter will not increase the fuel consumption of the car. Car owners can safely use warm air to keep the cab warm and comfortable.