In order to drive safely, you must know these summer common sense

Today is the summer solstice, the longest day and shortest day of the year in the northern hemisphere. With the advent of the summer solstice, high temperature weather will be ushered in throughout the country. While blowing air conditioning to eat cold drinks and enjoy the World Cup, we should also pay attention to the maintenance of our cars. The hot summer is also the time when the car is most susceptible to high temperature, and there are many hidden dangers. Today, Brother Cong will talk to you about some precautions for using the car in summer.

Pay attention to tire changes

When a car runs on a high-temperature road for a long time, due to the principle of thermal expansion and contraction, the tire pressure of the tire increases, and it is easy to cause a tire puncture accident. According to the data, when the vehicle speed exceeds 160km / h, if a flat tire accident occurs, the occupant mortality rate in the vehicle is close to 100%. Even at a speed of 120 km / h, once a tire punctures, the mortality rate of a rollover accident is close to 100%, so a tire puncture accident should not be underestimated.

So in the summer, we can properly reduce the tire pressure of the tires, and also pay attention to the absence of small stones or glass slag in the tire tread to ensure that the tires are in good working condition. If the tire suddenly punctures while driving, you must not violently hit the steering wheel and brake suddenly. You should hold the steering wheel firmly while slowly decelerating to make the vehicle stop smoothly.

Pay attention to the maintenance of the engine

In summer, the temperature is high and there is a lot of rain, so long-term use of the car is a big challenge for the normal operation of the engine. Especially for some old cars, we must pay attention to prevent the problem of aging lines and engine oil leakage.

In fact, in addition to the regular maintenance of the engine, we also need to pay attention to adding antifreeze. Many old drivers think that antifreeze is only available in winter, so summer antifreeze is replaced by water, which is wrong. Good antifreeze not only has the function of cooling the engine, but also has good low temperature and high temperature resistance, and even has functions such as anticorrosion and rust removal. Therefore, it is not advisable to replace antifreeze with water. First of all, water will somewhat corrode the cooling system, and the antifreeze contains anti-corrosion and anti-rust additives. Secondly, the boiling point of antifreeze is above 120 degrees Celsius, while the boiling point of water is only 100 degrees Celsius. The use of antifreeze can prevent the car from boiling in summer.

There are also special requirements for motor oil in summer. When the engine is operated at high temperature for a long time, it will transfer heat to the engine oil, causing the engine oil to oxidatively deteriorate and cause its oxidative deterioration. If the deteriorated oil is used for a long time, it is easy to cause accidents such as pulling cylinders.

Prevent long-term exposure to the car

With more and more private cars and fewer and fewer indoor parking spaces, summer cars often seem to be exposed to the sun. Long-term exposure of the car will not only cause the aging and discoloration of the car paint, affect the sealing performance of the vehicle, but also cause the interior deformation and produce harmful gases, even spontaneous combustion.

Therefore, when parking the vehicle in summer, try to park in a cool place or use a shade umbrella. At the same time, pay attention not to put lighter, hair spray and other flammable and explosive items in the car.

Proper use of air conditioner

In summer, when the temperature and humidity continue to rise, a large amount of bacteria and dirt will accumulate in the condenser, evaporator, and ventilation ducts, emitting an unpleasant sour odor, which seriously endangers the respiratory health of people in the car. Therefore, the air conditioning system should be cleaned before using the air conditioner in summer.

When using the air conditioner in summer, the outer circulation should be turned on first, and the windows should be opened, and then the inner circulation should be turned on after the hot inner heat is dissipated. If the engine is under heavy load for a long time, the air conditioner should be temporarily turned off. When cooling, the wind direction of the air conditioner is best to blow upward, because the cold air will sink downward, the wind direction gear is best to choose the blowing face block, and the effect of adjusting the air outlet upward is best. Finally, notice that the air conditioner is turned off before the destination to reduce the generation of odor.

Pass the wading section carefully

Summer is the rainiest season of the four seasons, and many cities are prone to cause water in the road area due to the poor drainage system. When we drive our own car to meet the unknown deep waterway in front, we can wait for the cars to pass first, and then pass it after confirming the safety; if your car is turned off in the water, it is likely that water has entered Engine intake and combustion systems, we all know that water is an incompressible liquid. If you hit the car again at this time, it will be fatal to the engine. If the connecting rod is deformed, the connecting rod will break and pierce the cylinder. In this case, you should call rescue immediately and dial the insurance number.