•You may want to turn off the speed control in hilly terrain if
unnecessary shifting between the top gears occurs. Unnecessary
shifting of this type could result in reduced fuel economy.
•Warming up a vehicle on cold mornings is not required and may
reduce fuel economy.
•Resting your foot on the brake pedal while driving may reduce fuel
economy.
•Combine errands and minimize stop-and-go driving.
Maintenance
•Keep tires properly inflated and use only recommended size.
•Operating a vehicle with the wheels out of alignment will reduce fuel
economy.
•Use recommended engine oil. Refer toMaintenance product
specifications and capacitiesin this chapter.
•Perform all regularly scheduled maintenance items. Follow the
recommended maintenance schedule and owner maintenance checks
found inscheduled maintenance information.
Conditions
•Heavily loading a vehicle or towing a trailer may reduce fuel economy
at any speed.
•Carrying unnecessary weight may reduce fuel economy (approximately
1 mpg [0.4 km/L] is lost for every 400 lb [180 kg] of weight carried).
•Adding certain accessories to your vehicle (for example bug
deflectors, rollbars/light bars, running boards, ski/luggage racks) may
reduce fuel economy.
•To maximize the fuel economy, drive with the tonneau cover installed
(if equipped).
•Using fuel blended with alcohol may lower fuel economy.
•Fuel economy may decrease with lower temperatures during the first
8–10 miles (12–16 km) 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.
Maintenance and Specifications
391
2011 F-250/350/450/550(f23)
Owners Guide, 4th Printing
USA(fus)
ProCarManuals.com
LATCH .....................................204
recommendations ...................195
Child safety seats - booster
seats ...........................................209
Cleaning your vehicle
engine compartment ..............358
instrument panel ............361–362
interior .....................................363
plastic parts ............................360
safety belts ..............................363
washing ....................................357
waxing .....................................358
wheels ......................................358
wiper blades ............................360
Climate control (see Air
conditioning or Heating) ......77, 80
Clock ......................................60, 62
Compass, electronic
set zone adjustment .................27
Console ........................................99
overhead ..............................98–99
Controls
power seat ...............................157
steering column ......................111
Coolant
checking and adding ..............375
refill capacities ................378, 407
Cruise control (see Speed
control) ......................................109
Customer Assistance ................314
Ford accessories for your
vehicle .....................................365
Ford Extended Service
Plan ..................................418, 421
Getting assistance outside the
U.S. and Canada .....................353
Getting roadside assistance ...314
Getting the service you
need .........................................349Ordering additional owner’s
literature .................................355
Utilizing the
Mediation/Arbitration
Program ...................................353
D
Daytime running lamps (see
Lamps) .........................................88
Defrost
rear window and rearview
mirrors .......................................80
windshield .................................80
Dipstick
automatic transmission
fluid ..........................................396
engine oil .................................371
Driving under special
conditions ..................292, 304, 308
sand .........................................306
snow and ice ...........................308
through water .................307, 310
E
Electronic message center ...22, 39
Emergencies, roadside
jump-starting ..........................343
Emergency Flashers .................315
Emission control system ..........392
Engine ........................................411
cleaning ...................................358
coolant .....................................375
diesel ...........................................7
fail-safe cooling .......................379
idle speed control ...................373
refill capacities ........................407
service points ..................367–369
Engine block heater .................266
Index
444
2011 F-250/350/450/550(f23)
Owners Guide, 4th Printing
USA(fus)
ProCarManuals.com
