•Sudden or hard accelerations may reduce fuel economy.
•Slow down gradually.
•Driving at reasonable speeds (traveling at 55 mph [88 km/h] uses 15%
less fuel than traveling at 65 mph [105 km/h]).
•Revving the engine before turning it off may reduce fuel economy.
•Using the air conditioner or defroster may reduce fuel economy.
•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 (as much as
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.
•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.
2009 Navigator(nav)
Owners Guide, 1st Printing
USA(fus)
Maintenance and Specifications
353
A
ABS (see Brakes) .....................257
Accessory delay ..........................96
AdvanceTrac ..............................259
Air cleaner filter ...............358, 361
Air suspension ...........................264
description ..............................264
Airbag supplemental restraint
system ........................184, 188, 190
and child safety seats ............186
description ..............184, 188, 190
disposal ....................................194
driver airbag ............186, 189, 191
indicator light .................188, 193
operation .................186, 189, 191
passenger airbag .....186, 189, 191
side airbag ...............................188
Antifreeze
(see Engine coolant) ................338
Anti-lock brake system
(see Brakes) ..............................257
Anti-theft system ..............146, 149
arming the system ..................149
disarming a triggered
system .....................................150
Audio system (see Radio) .........20
Automatic transmission
driving an automatic
overdrive .................................267
fluid, adding ............................358
fluid, checking ........................358
fluid, refill capacities ..............362
fluid, specification ..................362
Auxiliary input jack (Line in) ....26
Auxiliary power point .................92
Axle
lubricant specifications ..........362refill capacities ........................362
B
Battery .......................................336
acid, treating emergencies .....336
jumping a disabled battery ....305
maintenance-free ....................336
replacement, specifications ...361
servicing ..................................336
Belt-Minder.............................180
Booster seats .............................208
Brakes ........................................256
anti-lock ...................................257
anti-lock brake system (ABS)
warning light ...........................257
fluid, checking and adding ....357
fluid, refill capacities ..............362
fluid, specifications .................362
lubricant specifications ..........362
parking ....................................258
shift interlock ..........................266
Bulbs ............................................82
C
Capacities for refilling fluids ....362
Cargo cover ...............................128
Cargo management system ......128
Cell phone use ..............................8
Changing a tire .........................295
Child safety seats ......................198
in front seat ............................198
in rear seat ..............................198
LATCH .....................................201
recommendations ...................196
Child safety seats - booster
seats ...........................................208
Index
370
positioning ...............................295
storage .....................................295
Jump-starting your vehicle ......305
K
Keyless entry system ...............144
autolock ...................................133
keypad .....................................144
locking and unlocking doors ..145
programming entry code .......144
Keys ...................................131, 147
positions of the ignition .........250
L
Lamps
autolamp system .......................76
bulb replacement
specifications chart ..................82
daytime running light ...............77
fog lamps ...................................77
headlamps .................................76
headlamps, flash to pass ..........77
interior lamps .....................80, 83
replacing bulbs .........................86
LATCH anchors .........................201
Liftgate ......................123, 127, 139
Lights, warning and indicator ....12
anti-lock brakes (ABS) ..........257
Load limits .................................235
Loading instructions .................241
Locks
autolock ...................................133
childproof ................................137
doors ........................................133
Lubricant specifications ...........362
Lug nuts ....................................304
Luggage rack .............................129Lumbar support, seats .............155
M
Message center .........................110
english/metric button .............116
system check button ..............119
warning messages ...................119
Mirrors ...................................96, 98
automatic dimming rearview
mirror ........................................96
fold away ...................................98
heated ........................................99
programmable memory ..........140
signal .........................................99
Moon roof ..................................105
Motorcraft parts ........327, 344, 361
N
Navigation system .......................68
O
Octane rating ............................348
Oil (see Engine oil) ..................333
P
Park Assist ................................270
Parking brake ............................258
Parts (see Motorcraft parts) ....361
Pedals (see Power adjustable
foot pedals) ...............................100
Power adjustable foot pedals ...100
Power deployable running
boards ........................................100
Power distribution box
(see Fuses) .......................289, 292
Index
373