Why is fuel consumption higher in winter than in summer?

People have the impression that fuel consumption will be higher in summer because they have to turn on the air conditioner, but in fact, they only know that fuel consumption will be higher in winter after buying a car. What's going on?

The air conditioner doesn't cost much fuel.

Someone once did an experiment, that is, the fuel consumption of the air conditioner in summer is almost the same as the fuel consumption of the car with the air conditioner open and four windows open, because driving with the window open will cause the wind resistance to become larger, and the fuel consumption will still rise.

In fact, I feel that the air conditioner consumes fuel because once the air conditioner is turned on in a small displacement car, you can clearly feel the power of the vehicle decrease. I remember driving a Jetta more than 10 years ago, and if you want to overtake, you must turn off the air conditioner first. However, with the popularity of turbocharging, this phenomenon is no longer felt.

The air conditioner consumes oil, that is, it drives a compressor, which is equivalent to adding a person's load to the vehicle, which will be felt on the body of a small displacement, and the car with a displacement of self-priming power can no longer be felt. Whether the air conditioner is turned on or not, the fuel consumption will not change by more than 1L.

Why is it more fuel-intensive in winter?

Since all parts of automobiles, lubricating oil, computers, and wiring have their own operating temperature ranges, too high temperature and too low temperature will increase losses. As a result, the on-board computer sets the engine to a higher speed in the winter. Maintain the operating temperature in all aspects of the vehicle.

On the other hand, in the winter you will also turn on the hot air, which comes from the engine's cooling water circulation system, and in order to maintain this temperature, the engine also has to run at high speed.

In addition, in extremely cold areas, the combustion efficiency of the engine will also be reduced, resulting in a large power loss, and in order to compensate for this loss, you will also unconsciously step on the accelerator more.

You don't need to turn on the AC in the car air conditioner in winter, but why is the fuel consumption higher than in summer?

Turning on the air conditioner in the summer will consume more fuel than turning on the air conditioner in the winter.

Because in summer, the car is cooled by air conditioning, and in winter, it is heating. Generally, the car turns on the air conditioner in winter, as long as the car starts, the engine will produce heat, and part of the heat of the heating will be transmitted from the engine, saving a lot of fuel consumption.

It costs fuel to turn on the air conditioner in the car, and it does not consume fuel to turn on the air conditioner in winter.

Warm air comes from the heat generated when the engine is working: when the cooling system of the engine dissipates heat from the engine, the heat emitted by the fan is sent into the car to form a warm air; When the heater is not in use, the fan stops and the hot air outlet closes, and the heat is completely dissipated into the atmosphere. Therefore, car heaters are reused as waste and do not consume fuel.

The AC key is the switch of the air conditioner compressor, and if you use the air conditioner in summer, you must turn on the AC button, that is, turn on the cold air; The heater only uses the heat circulation inside the car, and there is no need to start the air conditioning compressor at all, so you only need to adjust the air conditioning button to turn on the heater, and you don't need to turn on the AC switch.

Because the temperature in winter is relatively low, the combustion of gasoline is not very sufficient, and the hot car will also consume a certain amount of energy, so the fuel consumption in winter is relatively high.

Because in winter, the outside temperature itself is very low, so the fuel consumption is particularly large, which is higher than that of the air conditioner in summer.

Because the car is more heated and more fuel-efficient, its engine spins faster.

The main reason is that the car needs to be heated up when starting the car in winter, so the fuel consumption is higher.

Mainly because of the cold climate in winter, it is generally necessary to warm up the car before driving.

In winter, the weather is relatively cold, and the engine generates huge energy consumption in the process of heating. In winter, the air conditioner should be turned on for heating. In this case, it is more energy-intensive than cooling in summer.

Because the temperature is low in winter.

The principle of thermal expansion and cold contraction.

I believe you will also find that in the summer, if you turn on the air conditioner, the car can also be faster, and this time has no impact on the car. But in winter, if we don't turn on the air conditioner, it is likely to cause many problems when we drive. Therefore, it is also a very important move to turn on the air conditioner to heat up the car while driving in winter.

Because the car often starts cold in winter, and the car is particularly easy to slip in winter, and the road is more slippery, so it is necessary to step on the accelerator frequently, so the fuel consumption is relatively high.

This happens because the weather is very cold in winter, and it is very difficult for cars to warm up in winter.

Hello dear <>, happy to answer for you. Does it consume fuel when you turn on the air conditioner in winter? Turning on the air conditioner in winter does not consume fuel for the following reasons:

1. **: Turn on the air conditioning and refrigeration, the air conditioning unit is working, and the power is the car engine, because the load increases, so the fuel consumption increases. However, the heating air conditioner does not consume rotten oil, and the warm air comes from the heat generated when the engine is working.

2. Principle: When the cooling system of the engine dissipates heat from the engine, the heat dispersed by the fan is sent into the car to form a warm air; When the heater is not in use, the fan stops and the hot air outlet closes, and the heat is completely dissipated into the atmosphere. Therefore, car heaters are reused as waste and do not consume fuel.

3. About a U002FC key: The heater is to use the heat circulation inside the car, and there is no need to start the air-conditioning compressor. <>

It doesn't cost gas to drive an air-conditioned car in winter. 1. In fact, turning on the air conditioner in winter is just to blow the water temperature of the car's cavity to the cab with a fan, even if there is a load, it is also the power of a fan, which belongs to heat reuse;

2. Therefore, the energy consumption of the heater is lower than that of the air conditioner, and the fuel consumption is negligible.

Notes:When the car is first started, it takes a certain amount of time for the oil to lubricate the individual components. If you turn on the heater at this time, the lubrication in the car engine is insufficient, and the friction coefficient expands, resulting in a high load on the car engine, which will definitely cost fuel, but most of you will mistakenly think that it is the ghost of the heater.

The correct way is to wait 3-5 minutes after the car starts, and then turn on the heater after the water shelters the temperature to rise.

If the air conditioner is set to internal circulation, the temperature inside the car will rise rapidly. After feeling the warmth in the car, it will be converted into the external circulation of slag, which is conducive to the natural ventilation of the car. The temperature adjustment of the warm air is 23 is optimal.

In addition, adjust the wind direction of the air outlet, not on the face, which is easy to cause fatigue and affect driving safety. Adjust the wind direction to blow your legs and feet, and your whole body will be warm when your legs and feet are warm.