What can cause a gradual loss in tyre inflation pressure?

Both driving on the motorway with a missing valve cap and having a foreign body in the tyre can lead to a gradual loss of tyre inflation pressure.

A missing valve cap allows air to escape more easily, and it may also expose the valve to dirt and moisture, further affecting tyre pressure.

Meanwhile, a foreign body, such as a nail or sharp object, can pierce the tyre, causing a slow leak.

It's essential to regularly check your tyres for both proper inflation and any damage. Maintaining correct tyre pressure is a key aspect of ensuring vehicle safety and compliance with German traffic regulations, which emphasize the importance of vehicle maintenance for road safety.