I mentioned several aspects of car maintenance before, many of which are not usually paid attention to, which may cause some problems. Next, I will add some aspects that need to be paid attention to.　

Continuing with the previous knowledge on car maintenance: 一、冷却水温度太低———磨损发动机 有的司机为了防止发动机温度过高，一味要求冷却水温度尽可能的低；有的司机为了达到降温的目的，干脆把节温器拆去，这些做法都是不对的。汽车发动机既怕热又怕冷，如果冷却水温度过低，会使燃油燃烧恶化，油耗增加，加剧磨损，机油黏度增加，发动机功率降低。发动机冷却水的温度并非越低越好，一般应控制在80~90摄氏度之间。　

With the continuous improvement of living standards, more and more people are paying attention to car maintenance. In fact, many car owners often make common sense mistakes during daily maintenance because they do not have enough understanding of the car itself. What are the specific reasons?　

As the temperature gradually rises, many reports about cars are constantly being excavated. For example, if a car catches fire that is difficult to prevent, it cannot be said to be impossible to prevent. After all, when a car catches fire, it will smoke first and then burn. If the owner can be vigilant and smell the odor, stop the car early for inspection, then the spontaneous combustion will not occur. So where do these odors come from? How can we distinguish whether these odors can cause spontaneous combustion?　

With the arrival of the rainy season, car enthusiasts have suffered a lot. After the rain, the air humidity increases and the interior of the car becomes more humid than usual, which can easily breed bacteria and affect the health of the car owner and passengers. So it is necessary to promptly disinfect the interior of the car and regularly replace the air conditioning filter.　

How to escape if a car falls into the water? Do you remember the heavy rain in Shenzhen a few days ago? Countless vehicles were submerged in the water, and some drivers, unfamiliar with the road and unable to see the road clearly, easily drove their cars into the river. So how should the driver save themselves when the car falls into the water? The time it takes for a car to be submerged in water is very short. If there is still time to react before falling into the water, the first thing to do is to open the car door or window to ensure that you are not trapped in the car. The moment of falling into the water is not a quick rush, water does not enter the car so quickly, it can open the door and escape quickly. When the water level has already submerged the height of the car door and the door cannot be opened, do not repeatedly do useless work. After the car is basically filled, you can quickly open the door.　

After driving for a long time, the neck will become very sore, and it usually does not leave the headrest. However, the height of the headrest must be aligned with the middle of the head after the head is resting on it. When adjusting the position of the car headrest, the height of the headrest should be adjusted to the upper edge of the passenger's eyes or ears, and the distance between the back of the head and the headrest should be close, preferably controlled at around 10 centimeters, to maximize the protection of the driver's neck safety. Seemingly simple adjustments are the foundation of safe driving. In the event of an emergency, the correct driving position and posture will enable you to react quickly in a shorter amount of time.　

For the situation where a new car is involved in an accident without a license plate, insurance companies usually believe that motor vehicles should obtain a license plate according to legal regulations before they can be driven on the road. If the insured vehicle does not have a license plate when an accident occurs, the insurance company will not be responsible for compensation, because the commercial third-party insurance and motor vehicle loss insurance clauses of the insurance company clearly stipulate that "in the event of an insurance accident, if the insured motor vehicle does not have a driving license or license plate issued by the traffic management department of the public security organ, the insurer is not responsible for compensation".