CHECK WINTER TYRE PRESSURE
For winter tyres, a rise in pressure of 0.2 bar is recommended due to thermal fluctuation that leads to a decrease in tyre pressure. It is preferable to measure pressure in cold conditions at least 30 minutes after using the vehicle, in order to be sure that the heat produced while driving has not modified the pressure. The winter tyres check has to be performed not only after traumas (such as bumping the tyres), but at least once a month.
The Highway Code and the applicable European directives establish that tyres must be replaced when the tread depth is less than 1.6 mm.
When not in use, winter tyre must be preserved, preferably inflated, with rims put on and pressure under control periodically. The best way to save them is positioning in a single line on shelves vertically, at least 10 cm from the ground, with the lateral side in a vertical way in order to not affect the profile.