It is hot in summer, and the tire pressure rises to 2.8, far exceeding the standard tire pressure. Do you need to lower the tire pressure?

In summer, the temperature is high. Do many people find that the air pressure of tires has also quietly increased? For example, it was winter when I picked up the car. At that time, the tire pressure showed 2.5, but in recent days, the tire pressure actually reached 2.7 and 2.8. Tires are as important to cars as people's feet, and their performance stability is also directly related to the driving safety of vehicles. The primary factor affecting tire stability is tire pressure. If you want to know whether your tire pressure is high or low, you must know the standard tire pressure.

The standard tire pressure can generally be seen on the nameplate or instruction manual of the car body, and some models will also give the standard tire pressure under different loads. The standard tire pressure is the value obtained by various manufacturers after comprehensive consideration, taking into account factors such as body weight, chassis height and driving speed, and it is not necessarily related to which brand of tire is used. For example, my car has a standard tire pressure of 2.2 for front and rear wheels and an economical tire pressure of 2.6. What is the economical tire pressure? We all know that the higher the tire pressure, the smaller the contact area between the tire and the ground, the smaller the friction and the more fuel-efficient.

However, the economical high tire pressure also has disadvantages. First of all, the tires are too hard and the car bumps obviously, which will lead to an increase in braking distance. After all, the friction becomes smaller, and the standard tire pressure is also the inflation pressure when the tire is cold. Cold tire pressure is the tire pressure when the vehicle is stationary, and the tire temperature is basically equal to the temperature. Hot tire pressure is the tire pressure of a car after driving for a certain distance. We must remember that the usual tire pressure is cold tire pressure. If it is hot tire pressure, the longer the driving distance, the faster the driving speed.

Keep looking at my car. The left front and rear wheel temperature is 27.28 degrees, the tire pressure is 2.8, and the right front and rear wheel temperature is 23.24 degrees. Many people may wonder why the temperature on the left is high, too high and the temperature on the right is low. Because I parked in the east-west direction. When the left wheel is irradiated by solar energy, the natural temperature will be very high, and the air in the tire will expand when heated. If it is too high, it will naturally be high. Through this data, it can be accurately reflected that the left tire temperature only rises to five degrees, and the tire pressure rises. 0. 1, if driving for a long time, the tire temperature will continue to rise. If the tire temperature exceeds 40 degrees, the tire pressure will easily spread. My car is obviously too high.

When the temperature is high in summer, the air in the tire expands when heated. At this time, it is best not to exceed the economic tire pressure of 2.6, because the economic tire pressure itself is high. Of course, in order to protect tires and improve driving comfort, try to adjust according to the standard tire pressure. May 3 1 when I went to get a car on bail, the maintenance master also found that the tire pressure was too high, so I inflated the tire properly. Now when the tire is cold, the temperature is 26 degrees, and the tire pressure has dropped to 2.5. After driving for a while, the temperature has risen to 36 degrees, and the tire pressure has also risen to the economic tire pressure of 2.6, which is a bit high and normal. According to the statistics of the traffic control department, every year.

The explosion-proof inspection of tires and the detection of tire pressure are really important. Finally, to sum up, no matter how the temperature changes, the standard tire pressure is constant, and the standard tire pressure of different models is different. We'd better adjust the tire pressure according to the standard tire pressure on the body number plate. Too high or too low tire pressure will directly affect the tire life and may even lead to a puncture. Therefore, for cars without tire pressure monitoring, it is recommended that the owner install a tire pressure monitoring system. If you don't want to spend money, you can go to the repair shop to check the tire pressure regularly.