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:
Steering, brakes and transmission
The Volvo XC90 is as easy, responsive and rewarding to drive as a regular
Volvo saloon or estate model. Its torsionally rigid body, transverse engines and
All Wheel Drive combine to create almost ...
Steering wheel keypad
Standard steering wheel keypad
1 - Left/right arrow keys: A short press moves between preset radio stations
or tracks on a disc. Press and hold to search within tracks or to tune to the next/prev ...
Basic sound settings
Press SOUND to display the basic sound setting
menu (Bass, Treble, etc). Continue pressing
SOUND or OK/MENU to display the other
setting alternatives.
Adjust the setting by turning TUNE and sav ...
