I think the most talked about topic of automobiles is probably the issue of fuel consumption. No matter what kind of American, Japanese, German and French vehicles you have, or joint venture domestic vehicles, we should discuss their fuel consumption. And the level of fuel consumption is also an important reference for many people to measure the performance-price ratio of vehicles. There are many reasons for the high fuel consumption of vehicles, and there is no decisive factor. We need to judge the fuel consumption of vehicles in many ways. I will summarize the main components that affect the fuel consumption.

Vehicle load and tire friction. Vehicle"s own load is affecting fuel consumption. Generally, we are traveling with two people. Suddenly, for a period of time, the car is full of people, or the goods you put in the reserve box. Vehicle"s load has increased by several hundred kilograms. Vehicle drives these hundreds of kilograms, which naturally needs to consume the corresponding gasoline. It"s like running without a body and running with tens of kilograms of objects on your back. It takes a different amount of physical energy. If you don"t understand this, I feel very speechless. And the effect of tire friction. If the tire pressure decreases, the tire grounding area will increase, and the friction force will increase accordingly. At this time, the engine needs additional power to overcome this friction. As everyone who rides a bicycle knows, when the tire is flat, the strength of the pedal is very different from that of the pedal full of air. Therefore, insufficient tire pressure and increased friction will also increase part of the fuel consumption.

Failure of vehicle ECU system and oxygen sensor will increase fuel consumption. Nowadays, the fuel injection of vehicles is judged and controlled by ECU system. You want to use pedal fuel injection in the old car. This kind of electronic fuel injection can be judged comprehensively according to the driving condition of the vehicle, the speed of the engine and the speed of the gearbox, and when to inject more fuel. Although this is more accurate and convenient, but the car computer system will also fail, when he has bad contact or a wrong operation program, he will give orders, should not inject fuel to let the nozzle pound out, anyway, it is not his own fuel waste, you are helpless. Similarly, when the oxygen sensor in the car fails, the amount of oxygen entering the combustion chamber can not be judged. ECU also does not know how much fuel should be injected for mixed combustion. It accidentally sprays more fuel, and the amount of oxygen is insufficient, so that the gasoline can not be completely burned, resulting in waste.

Several filters of the vehicle are not in place for maintenance. Increased carbon deposit in the vehicle increases fuel consumption. I personally think that the increase in fuel consumption of most new cars after two years of use is related to the inadequate maintenance of carbon deposits. The three filters in the car will accumulate a large amount of impurities in the filter core after a long time of use, which makes the gasoline entering the combustion chamber will affect the combustion effect because of containing more impurities, and the air filtering ability will decline. When there are impurities in the inhaled air or excessive moisture, the gasoline can not be fully burned. The impurities in the engine oil will increase the wear and tear of the parts and components, and it will not start well. The lubrication effect will also increase fuel consumption. Therefore, regular replacement and maintenance of these filters should be done, and dirty filters should be treated immediately to avoid affecting fuel consumption. Increased carbon deposition in the car will not only absorb part of the fuel to increase fuel consumption, but also increase the wear of the paint as the oil mixture fills the parts.

Batteries and spark plugs malfunctioned. When I say that batteries affect fuel consumption, it is estimated that many people will wonder, what is the relationship between circuit and fuel consumption? Let me give you an analysis. As mentioned earlier, most of the current models are electronic fuel injection vehicles, and the amount of fuel injection is controlled by the on-board computer. If the battery is out of power, in order to ensure the power supply, ECU will direct the engine to drive the generator to charge the battery, which will naturally consume part of the fuel in the charging process. If the car batteries need to be recharged frequently, I think it"s better to replace them directly. Besides, the effect of spark plug, when the spark plug is oxidized or carbon deposited, the ignition effect will decrease. When the engine is ignited by injecting fuel, once the fuel is sprayed but not ignited, the fuel ejected from this part will not burn effectively, and it is inevitable to increase fuel consumption.

Artificial operation and poor road conditions will increase fuel consumption. Drivers"operating habits also have an impact on fuel consumption. For example, they like to slam on the accelerator or brake to slow down. In the process of sudden increase and deceleration, the fuel economy of the engine will be affected. If the route is not well planned, frequent traffic lights or congestion in the front, the vehicle is idling, and fuel consumption will be high if the fuel can not be fully burned. What"s worse is that when we get stuck in the road, the vehicles are idling and consuming fuel, but they can"t move anywhere. These personal driving habits and route control choices have a direct impact on the increase in fuel consumption.

In short, the increase of vehicle fuel consumption is related to the failure of some parts of the vehicle, and improper maintenance will also increase fuel consumption. Driver"s driving operation and traffic conditions are all factors contributing to the increase of fuel consumption. We should pay attention to the daily inspection and maintenance of vehicles, use the right way to drive, choose a reasonable road to drive, in order to effectively reduce fuel consumption.