How do you know the tire condition when driving a car without a tire pressure monitoring system?

How can a car without a tire pressure monitoring system check whether the tire pressure is normal? In this case, we can roughly judge according to the contact area between the tire and the ground.

Nowadays, radial tires are widely used in cars, and the tire walls are all soft, and the tires look soft and collapsed, as if they are short of air. An old driver in our unit once had such a joke: he borrowed a car from someone else and found that the tire was flat. He thought he was flat, so he tried his best to pump up the tire until it was bulging. When I returned the car, I also asked the owner if there was something wrong with your car. Shock absorption is not good at all, and the more the tire slows down, the more it jumps. After careful inspection, the owner found that something was wrong and the tire pressure was too high. Under normal circumstances, the tire pressure of this kind of car is around 2.3bar, and the old driver hit nearly 6 bar.

So how to check whether the tire pressure is normal without measuring tools? Generally, it can be checked by the following methods: parking the car on a flat and hard ground, and then observing the contact surface between each wheel and the ground. If there are 4~5 tread patterns on the contact surface between the wheel and the ground, it means that the tire pressure is normal; If there are more than 5 tires, the tire pressure is too low; If there are less than 4 tires, the tire pressure is too high.

Fetal flower

Normal tires have patterns on them, and we can judge whether the tire pressure is normal according to the number of times the tire tread contacts the ground. Under normal circumstances, when the family car is empty, 4-5 tires touch the ground, which is considered as normal tire pressure. We can take a closer look at the picture above. In the picture above, there are four tires touching the ground.

Anyway, this car knowledge is still practical! Did you learn it after reading it? If your car doesn't have tire pressure monitoring, try the above method. It's not necessarily accurate, but it's probably no problem to have a look. In addition, I remind you that you must check your tires first when you go out, especially on the highway or in a long distance. Like it if it is useful and share it with more people! Thank you!