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:
Contacting Volvo
In the USA:
Volvo Cars of North America, LLC
Customer Care Center
1 Volvo Drive,
P.O. Box 914
Rockleigh, New Jersey 07647
1-800-458-1552
www.volvocars.us
In Canada:
Volvo Cars of Canada Corp
...
Releasing the electric parking brake
Parking brake control
Manual release
1. Fasten the seat belt.
2. Insert the remote key in the ignition slot (or
press the START/STOP ENGINE button
on vehicles with the optional keyless drive) ...
Deposit control gasoline (detergent additives)
Volvo recommends the use of detergent gasoline
to control engine deposits. Detergent
gasoline is effective in keeping injectors and
intake valves clean. Consistent use of deposit
control gasol ...
