Tires are always flat. What is the reason?

If a car's tires are always flat, it is likely that the tires are stuck by nails, because the tires are in contact with the road every day and are easily stuck by these things. After finding the foreign body and cleaning it, repair the damaged place, which can be solved by hot sticking.

Secondly, it may be that the valve core is aging, which leads to air leakage after the seal becomes worse. The owner can change the valve core according to the situation.

In addition, some car owners are inexperienced in driving, and sometimes they bump their tires on the steps along the road. Too many times will cause damage to the side of the tire, causing the tire to leak slowly. At this time, it is necessary to replace new tires as soon as possible to avoid puncture during driving.