What are the reasons for excessive car consumption?

1. The tire pressure is lower than the standard pressure, which increases the rolling resistance of the tire. It will increase the ground contact and friction of the tire, which will not only wear the shoulders on both sides of the tire, but also increase fuel consumption.

2. The tire pressure is unbalanced, and the friction and lateral steering resistance increase accordingly. There are also potential problems such as deviation, steering difficulty and poor braking effect.

3. Tire lines and patterns can be roughly divided into three categories: one is off-road; One is athletic; One is comfortable and quiet. Off-road tires have large tread patterns, which are suitable for driving in harsh road conditions such as sand and gravel, and their fuel consumption is the largest. Generally speaking, tires with athletic performance emphasize grip, wide tread, easy handling and moderate fuel consumption. Comfortable and quiet tires have the lowest fuel consumption because of fine and smooth patterns.

It takes too long to warm up the car. In the morning, not only waiting for the speed to drop to normal or the water temperature to rise to normal, it is tantamount to having a hard time with the wallet.

5. Filling the fuel tank will increase the load and fuel consumption of the car.

6. The temperature control switch and thermostat are damaged, which reduces the water temperature and increases fuel consumption.

7. The spark plug is used for a long time, which leads to the reduction of energy generated by ignition, the slow speed and the obvious increase of fuel consumption. So, check or replace the spark plug in a year or so.

8. Don't turn off the fire or strike the fire frequently when idling for a long time. Therefore, novices consume a lot of fuel because they often turn off the fire.

9. When driving, the fuel consumption difference at the same speed can reach 12ml, and 0.4g more carbon monoxide is emitted per kilometer. In addition, the rapid acceleration causes strong friction between the tire and the ground, which accelerates tire wear. It is also easy to cause carbon deposition and fuel consumption of the engine.

10. High-speed window opening is not only loud, but also more fuel efficient.

1 1. Frequent braking is the most fuel-efficient when driving at a constant speed. This is self-evident.

12. Too much loading will increase the weight of the vehicle, such as often putting some unnecessary items in the trunk.

13. Unnecessary high-speed driving. Any car has its economic speed, and driving at this speed is the most fuel-efficient. Below or above this speed, the fuel consumption will increase, and after a certain speed, the fuel consumption will increase greatly. Generally, the speed is 70~90. The higher the speed, the greater the wind resistance will be, and the car body will start to float, which will also affect safety.

14. The normal water temperature of the engine should be kept between 80℃ and 90℃. Too high or too low will increase fuel consumption. It is particularly important to note that if the water in the water tank is insufficient, it is easy to cause the water temperature to rise rapidly. When the water temperature exceeds 95℃, the oil consumption will increase by 30%-40% compared with normal temperature, which is easy to cause parts wear and damage.

15. Too much or too little lubricating oil. Excessive lubricating oil and engine oil participate in combustion, resulting in incomplete combustion of mixed gas, carbon deposition in spark plugs, silencers and other parts, increased fuel consumption, slow growth rate and decreased power; Too little lubricating oil will cause dry friction between matching parts, which will overheat the engine, reduce power and increase fuel consumption. So pay attention to maintenance.

16. The "three filters" have not been changed for a long time. In the process of vehicle use, the three filters must be replaced regularly. If it is not replaced for a long time, it will become dirty and greasy, which will affect the use and send an error message to the engine control unit, resulting in insufficient fuel combustion and increased carbon deposition in the engine.

17. Grasp the shift timing correctly, and shift gears timely and accurately, which will increase fuel consumption too early or too late. Start from the first gear, shift to the second gear when driving, shift to the third gear when approaching or exceeding 20 km/h, shift to the fourth gear when approaching or exceeding 40 km/h, and shift to the fifth gear when approaching or exceeding 50 km/h; Reverse gear when slowing down. It is suggested to shift gears between 2000-3000 rpm, which will save fuel and reduce engine wear.

18. Cleaning the injector for a long time will also lead to an increase in fuel consumption.

19. Driving on a congested road, congestion has become the most direct reason for the soaring fuel consumption of vehicles in big cities. Therefore, when driving, it is best to know the congested road conditions in advance and choose the most intelligent route.

20. Short-distance driving: In practical work, it takes a long time for the engine of a cold car to reach the best state of all components. Generally speaking, this distance is 4 kilometers. If you drive a short distance, it may double or even triple your fuel consumption per 100 kilometers.