Demanding driving

In demanding driving conditions, such as operating the vehicle in hot weather, towing a trailer, or driving for extended periods at higher altitudes than normal, it may be advisable to switch to higher octane fuel (91 or higher) or to change gasoline brands to fully utilize your engine's capacity, and for the smoothest possible operation.
NOTE
When switching to higher octane fuel or changing gasoline brands, it may be necessary to fill the tank more than once before a difference in engine operation is noticeable.
See also:
Spots on interior plastic, metal, or wood surfaces
Cleaning interior plastic components should
be done with a cleaning agent specially
designed for this purpose. Consult your Volvo
retailer. ...
Current speed in mph (Canadian models only)
This function provides the driver with an instantaneous
conversion of the car's current speed
from km/h to mph. ...
Operating DAC
Certain settings can be made from the menu
system controlled from the center instrument
panel.
The current system status can be checked on
the trip computer’s display by using the buttons
on ...
