Check pressure only when tires are cold.
The frequency of checks is once a month or when servicing the car.
It is advisable to check the pressure before long trips, since at this time the maximum temperature load on the tires is reached. When driving long distances at high speeds and under-inflated tires, more energy is expended to deform the tire, causing it to overheat, and tread separation or even tire blowout may occur.
Warning
When driving a car with a full load (the maximum permitted weight of the car with a load), the maximum speed should not exceed 100 km / h, the tire pressure should be increased by 0.2 kgf / cm 2 compared to the standard value.
Source: http://www.samoremont-avto.ru/ford-focus2-repair-manual-p328.html.




