Checking The Tyre Pressures - Volvo XC 90 Owner's Manual

WHEELS AND TYRES

Checking the tyre pressures.

Tyres with the correct air pressure increase driv-
ing safety, save fuel and extend the service life of
the tyres.
Tyre pressure decreases over time, this is a natu-
ral phenomenon. Tyre pressure also varies
depending on ambient temperature. Inadequate
tyre pressure increases fuel consumption, short-
ens tyre lifespan and impairs the car's driving
characteristics. Driving on tyres with tyre pressure
that is too low could result in the tyres overheat-
ing and being damaged. Tyre pressure affects
travelling comfort, road noise and driving charac-
teristics.
Recommended tyre pressure
The tyre pressure label on the driver's side door
pillar (between frame and rear door) shows which
450
pressures the tyres should have at different loads
and speed conditions.
Improved fuel economy with ECO
pressure
For optimum fuel economy at speeds below
160 km/h an ECO pressure is recommended for
both full and light load.
Checking the air pressure
1. Check the tyre pressures monthly. Carry out
the check on cold tyres, which means that
the tyres should have the same temperature
as the outside temperature. After several few
kilometres of driving, the tyres warm up and
the pressure increases.
2. If necessary, inflate so that the air pressure
corresponds with the approved tyre pressure
in accordance with the tyre pressure label.
NOTE
•
After a tyre has been inflated, always refit
the dust cap in order to avoid damage to
the valve from gravel, dirt, etc.
•
Only use plastic dust caps. Metal dust
caps can rust and become difficult to
unscrew.
Related information
•
Tyres (p. 448)
•
Check tyre pressure with the tyre pressure
monitoring system (p. 453)
•
Inflate tyres with the compressor from the
emergency puncture repair kit (p. 463)
•
Approved tyre pressures (p. 535)