What is the “pressure approved by the manufacturer of a car”?

It is the optimal pressure for the tyres installed in our car, as recommended by the car’s manufacturer.Depending on the vehicle, this information can be found:

  • on the fuel cap,
  • in the glove compartment,
  • on the door sill,
  • near the driver’s door.

The most popular values are 2.0, 2.2, etc.

How does the ambient temperature influence the pressure in our tyres?

Let’s imagine, that your car has a recommended pressure of 2 bar.The tyre was inflated to the recommended pressure in a garage, in a temperature of approx. 20°C.Let's look at the influence that temperature has:At 0°C, the pressure in this tyre will fall to 1.8 bar and it will drop as the temperature falls to reach 1.7 bar at minus 10°, and only 1.59 bar at minus 20°, which is a 20-percent fall from the recommended value!That's why it is so important to check your tyre pressure in the winter more often than in the summer, even once a week.


Tyre pressure information

What are the effects of insufficient tyre pressure?

  • longer braking distance,
  • worse steerability,
  • sideways swinging when driving straight ahead,
  • “floating" in corners,
  • lowered grip,
  • increased fuel consumption,
  • significantly decreased durability.

Increase your pressure by 0.2 bar in the winter.


Tyre pressure

Correct pressure ensures the best possible grip, which is especially important in winter.In practice, it is not always possible to adjust the pressure according to the temperature outside, especially when the weather is changing.That's why it is recommended that you increase the pressure by 0.2 bar when very low temperatures persist for some time.This is caused by a relatively average range of winter temperature variations in our climate.

One should remember, however, to decrease the pressure to the level recommended by the vehicle’s manufacturer once temperatures rise again.The pressure given by the manufacturers is optimal for our wheels.