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:
S80 in the Market
The market for a large luxury sedan from Volvo has always been hampered by
the fact that the people car buyers want to protect most are their family, and
families often opt for wagons and SUVs. Th ...
Increasing or decreasing speed
Use + or – in the following ways to increase or
decrease the vehicle's speed:
1. Press and hold down + or – until the vehicle
reaches the desired speed.
2. Press + or – for approximately a hal ...
