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:
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 ...
Operation
Chassis settings
Use the buttons in the center console to change setting. The setting in use when
the engine is switched off is activated the next time the engine is started. ...
Vehicle Overview
Long known for safe, solid sedans and wagons, Volvo joined the sport utility
vehicle fray in 2003 with its car-based XC90. The Swedish automaker promised the
ride and handling of a passenger car. ...
