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:
Maintenance
Your Volvo passed several major inspections
before it was delivered to you, in accordance
with Volvo specifications. The maintenance
procedures outlined in the Warranty and Service
Records Inf ...
Fuel Formulations
Do not use gasoline that contains lead as a
knock inhibitor, and do not use lead additives.
Besides damaging the exhaust emission control
systems on your vehicle, lead has been
strongly linked ...
Interior lighting, rear
Rear reading lights
The lights are switched on or off by pressing each respective button.
Courtesy lights/door step lighting*
The courtesy lights/door step lighting switch on/off automatically wh ...
