Page 249 of 312

If the vehicle is towed by other means or incorrectly, vehicle
damage may occur.
With a disabled vehicle (without access to wheel dollies, car hauling
trailer or flatbed transport vehicle) your vehicle can be towed (all wheels
on the ground) under the following conditions:
Special Conditions:
•Release the parking brake.
•Turn the air suspension control to OFF.
•Turn the ignition to the OFF/UNLOCKED position.
•Place the transmission in N (Neutral).
If the vehicle’s battery is discharged, refer toAutomatic transmission
operationin theDrivingchapter for directions on how to move the
gearshift lever out of the P (Park) position, for proper towing.
•Do not exceed a distance of 50 miles (80 km).
•Do not exceed 35 mph (56 km/h) vehicle speed.
Ford Motor Company produces a towing manual for all authorized tow
truck operators. Have your tow truck operator refer to this manual for
proper hook-up and towing procedures for your vehicle.
2007 Navigator(nav)
Owners Guide (post-2002-fmt)
USA(fus)
Roadside Emergencies
249
Page 288 of 312

•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.
•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.
2007 Navigator(nav)
Owners Guide (post-2002-fmt)
USA(fus)
Maintenance and Specifications
288
Page 310 of 312

inflating ...................................162
label .........................................173
replacing ..................................165
rotating ....................................168
safety practices .......................167
sidewall information ...............169
snow tires and chains ............178
spare tire .................................232
terminology .............................161
tire grades ...............................160
treadwear ........................160, 164
Towing .......................................184
recreational towing .................191
trailer towing ..........................184
wrecker ....................................248
Transmission .............................205
brake-shift interlock (BSI) ....205
fluid, checking and adding
(automatic) .............................293
fluid, refill capacities ..............297
lubricant specifications ..........297
Trunk .....................................95–96
Turn signal ..................................42V
Vehicle Identification Number
(VIN) ..........................................301
Vehicle loading ..........................178
Ventilating your vehicle ...........195
W
Warning lights (see Lights) .......10
Washer fluid ..............................268
Water, Driving through .............220
Windows
power .........................................55
rear wiper/washer .....................50
Windshield washer fluid and
wipers ..........................................49
checking and adding fluid .....268
liftgate reservoir .....................268
replacing wiper blades ...........269
Wrecker towing .........................248
2007 Navigator(nav)
Owners Guide (post-2002-fmt)
USA(fus)
Index
310