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:
Speed rati
The speed ratings in the table translate as follow:
Speed ratings
M
81 mph (130 km/h)
Q
100 mph (160 km/h)
T
118 mph (190 km/h)
H
130 mph (210 km/h)
...
Single sweep
Move the lever upward from position
0 to sweep the windshield one stroke
at a time for as long as the lever is held up. ...
Behind the wheel
The base XC60 has a 240-horsepower, 3.2-liter six-cylinder engine. I drove
the more powerful T6 version, which was a little bit of a bummer. I appreciated
the solid feel and the 325-hp, turbocharg ...
