•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.
•Close windows for high speed driving.
EMISSION CONTROL SYSTEM
WARNING:Do not park, idle, or drive your vehicle in dry grass
or other dry ground cover. The emission system heats up the
engine compartment and exhaust system, which can start a fire.
WARNING:Exhaust leaks may result in entry of harmful and
potentially lethal fumes into the passenger compartment.
Maintenance and Specifications
399
2012 F-250/350/450/550(f23)
Owners Guide, 1st Printing
USA(fus)
LATCH .....................................210
recommendations ...................201
Child safety seats - booster
seats ...........................................215
Cleaning your vehicle
engine compartment ..............367
instrument panel ............369–370
interior .....................................371
plastic parts ............................368
safety belts ..............................371
washing ....................................365
waxing .....................................366
wheels ......................................366
wiper blades ............................368
Climate control (see Air
conditioning or Heating) ......80, 83
Clock ......................................62, 64
Compass, electronic
set zone adjustment .................28
Console ......................................102
overhead ..................................102
Controls
power seat ...............................163
steering column ......................115
Coolant
checking and adding ..............383
refill capacities ................386, 414
Cruise control
(see Speed control) ..................113
Customer Assistance ................322
Ford accessories for your
vehicle .....................................373
Ford Extended Service
Plan ..................................424, 427
Getting assistance outside the
U.S. and Canada .....................361
Getting roadside assistance ...322
Getting the service you
need .........................................357Ordering additional owner’s
literature .................................363
Utilizing the
Mediation/Arbitration
Program ...................................361
D
Daytime running lamps
(see Lamps) ................................91
Defrost
rear window and rearview
mirrors .......................................83
windshield .................................83
Dipstick
automatic transmission
fluid ..........................................404
engine oil .................................379
Driving under special
conditions ..................300, 312, 316
sand .........................................314
snow and ice ...........................316
through water .................315, 318
E
Electronic message center ...22, 40
Emergencies, roadside
jump-starting ..........................351
Emergency Flashers .................323
Emission control system ..........399
Engine ........................................418
cleaning ...................................367
coolant .....................................383
diesel ...........................................6
fail-safe cooling .......................387
idle speed control ...................381
refill capacities ........................414
service points ..................376–377
Engine block heater .................273
Engine oil ..................................379
Index
449
2012 F-250/350/450/550(f23)
Owners Guide, 1st Printing
USA(fus)
