User Manual - Page 294

For F-450 2017.

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Fuel economy may decrease with lower
temperatures during the first 810
miles (1216 kilometers) of driving.
Driving on flat terrain offers improved
fuel economy as compared to driving
on hilly terrain.
Transmissions give their best fuel
economy when operated in the top
cruise gear and with steady pressure
on the gas pedal.
Four-wheel-drive operation (if
equipped) is less fuel efficient than
two-wheel-drive operation.
Close the windows for high-speed
driving.
DRIVING THROUGH WATER
WARNING
Do not drive through flowing or deep
water as you may lose control of your
vehicle.
Note: Driving through standing water can
cause vehicle damage.
Note: Engine damage can occur if water
enters the air filter.
Before driving through standing water,
check the depth. Never drive through water
that is higher than the bottom of the wheel
hubs.
E176913
When driving through standing water, drive
very slowly and do not stop your vehicle.
Your brake performance and traction may
be limited. After driving through water and
as soon as it is safe to do so:
Lightly press the brake pedal to dry the
brakes and to check that they work.
Check that the horn works.
Check that the exterior lights work.
Turn the steering wheel to check that
the steering power assist works.
FLOOR MATS
WARNINGS
Always use floor mats that are
designed to fit the foot well of your
vehicle. Only use floor mats that
leave the pedal area unobstructed. Only
use floor mats that are firmly secured to
retention posts so that they cannot slip out
of position and interfere with the pedals
or impair safe operation of your vehicle in
other ways.
Pedals that cannot move freely can
cause loss of vehicle control and
increase the risk of serious personal
injury.
Always make sure that the floor
mats are properly attached to the
retention posts in the carpet that are
supplied with your vehicle. Floor mats must
be properly secured to both retention posts
to make sure mats do not shift out of
position.
Never place floor mats or any other
covering in the vehicle foot well that
cannot be properly secured to
prevent them from moving and interfering
with the pedals or the ability to control the
vehicle.
291
Super Duty (TFE) Canada/United States of America, enUSA, First Printing
Driving Hints
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