Due to the current epidemic, many friends mostly choose private cars to travel when they return to the city. Therefore, a special reminder to everyone: the inspection and maintenance of the vehicle before traveling, especially the inspection of the tire condition cannot be ignored, which is related to driving safety.

1. Tread wear

The wear of the tread is normal. Generally, as long as the wear surface does not exceed the marking line, it is ok. Generally, the height of the tire wear mark of a family car is 1.6 mm. If the tire wear mark and the tread are found to be at the same height, the tire has been worn. Seriously, the tires need to be replaced.

If there is wear on one side, wear on the middle, wear on both sides, etc., it proves that there is a problem with the four-wheel alignment and suspension of the vehicle, and you need to go to a professional repair shop to check.

2. Sidewall wear

The tire sidewall is the weakest part of the tire. Daily parking on the side may cause friction and extrusion between the tire sidewall and the curb, causing the tire sidewall to bulge.

The bulge of the sidewall actually means that the steel cord on the side of the tire is broken, which not only affects the appearance, but also cannot be restored through maintenance, and can only be replaced with a new tire.

The most important thing is that the tire bulge will greatly reduce the stability of the overall structure of the tire, laying a hidden danger for the puncture. It is recommended to replace the tire in time.

conditions such as the oil circuit and circuit, the age of the tires should also be paid attention to.

Usually the normal service life of tires is 3 to 5 years. Considering the mileage of normal family cars, 5 years can be used as a time node. Tires less than 5 years old can be used with confidence. For tires older than 5 years, it is recommended to replace them with new ones. Tire, due to the aging of tire rubber, it may cause a puncture accident at any time.

3. Is the tire pressure normal?

Tire pressure is a problem that most car owners often overlook. Although it is the beginning of spring, the weather in most places is still cold, and the tire pressure will decrease with the temperature, so the car owner can properly supplement the air pressure before traveling.

Of course, the tire pressure should not be too high. If the tire pressure is too high, the contact area between the tire and the ground will be reduced, and the central part of the tire will wear too quickly. Therefore, in winter, the tire pressure can be a little higher than the specified tire pressure. If you are not sure, you can consult a professional auto mechanic or go to the store to measure the pressure to decide whether to increase or decrease the tire pressure.

4. Check the service life of tires

Due to the severe epidemic in the past two years, many people's cars are idle, and the idle cars will go back to the city. In addition to checking the basic vehicle 

5. Replacing winter tires

As I said just now, low temperature will change the tire pressure. In addition, the rain and snow in winter will also have an adverse effect on the safe use of tires.

Most of us use all-season tires in daily life. This tire takes into account the advantages of fuel saving and drainage. However, in the snowy and slippery road conditions in extremely cold regions, there may be a problem of a significant drop in grip.