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:
Interior Design
While the exterior of the Volvo S40 could be described as evolutionary from
the S60 and S80, the interior represents nothing less than a revolution in car
design. Its focal point is an ultra-thin ...
Stage 1: Sealing the hole
1. Open the cover on the tire sealing kit.
2. Peel off the speed limit sticker and affix it
to the steering wheel hub where it will be
clearly visible to the driver.
3. Ensure that the on/off sw ...
Lever positions
Turn signals, lane change
position
Turn signals, position for
normal turns
High beam flash
Toggle between high and low
beams,
Home Safe lighting ...
