Slow tire leakage may also be caused by these conditions
A slow flat tire is more dangerous than a puncture. If your car is leaking air slowly, check three places quickly and deal with potential safety hazards in a timely manner.
Look at the side of the tire
The sidewall of the tire is more fragile than the tread. If you are not careful when parking, the side of the tire or even the wheel hub may be scratched against the curb. If the tire is scratched too hard, it may easily cause hidden damage to the sidewall. Over time, side tire leaks or even bulges will develop, which will increase the chance of a tire blowout.
If the tread is punctured, the tire can generally be repaired, but if the side is damaged, the only option is to replace it with a new tire.
View valve
Most valves are made of rubber, which will harden and crack after long-term use, causing tire leakage. The service life of a rubber valve is generally 3-5 years, which is similar to the life of a tire, so when replacing the tire, the valve can be replaced together. You can also switch to aluminum alloy valves, whose lifespan is more than twice as long as rubber valves.
The valve cap also needs to be inspected and replaced regularly. It can isolate the air, prevent dust, water, oil, etc. from damaging the valve core sealing rubber, and extend the service life of the valve core.
Check whether the wheel hub is deformed
If the wheel hub is deformed, it will affect the tightness of the tire and cause the tire to leak. Slight deformation of the wheel hub is not easily visible to the naked eye and requires a professional maintenance technician to inspect it.