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:
Check coolant level
The cooling system must be filled with coolant
and not leak to operate at maximum efficiency.
Check the coolant level regularly. The level
should be between the MAX and MIN marks
on the expansio ...
Introduction
Adaptive Cruise Control (ACC) is an optional system designed to assist the driver
by maintaining a set speed or a set time interval to the vehicle ahead. It is primarily
intended for use on long s ...
Vehicle Overview
New brushed-aluminum roof rails and an eggcrate grille go on 2005 XC70s. A
trip computer and rear armrest are also now standard. The headlights and
taillamps have been restyled, new front and rear ...
