Page 368 of 381

Extensive idling and/or low-speed driving for long distances as
in heavy commercial use (i.e. delivery, taxi, patrol car or livery)
Inspect frequently,
service as requiredReplace cabin air filter (if equipped)
Replace engine air filter
Every 5,000 miles
(8,000 km)Inspect brake system
Inspect wheels and related components for
abnormal noise, wear, looseness or drag
Lubricate control arm and steering ball joints if
equipped with grease fittings
Rotate tires*, inspect tire wear and measure
tread depth
Every 5,000 miles
(8,000 km) or
6 monthsInspect and lubricate U-joints
Every 5,000 miles
(8,000 km),
6 months or 200
engine hoursChange engine oil and filter
Every 30,000 miles
(48,000 km)Change automatic transmission fluid (except
6R80 and TorqShifttransmissions)
Replace front wheel bearing grease/grease seals if
non-sealed bearings are used (2WD vehicles)
Every 60,000 miles
(96,000 km)Change transfer case fluid (4WD vehicles)
Replace spark plugs
*If equipped with dual rear wheels, rotate front wheels when specified,
rear wheels only if unusual wear is noted
Scheduled Maintenance
368
2012 Navigator(nav)
Owners Guide, 1st Printing
USA(fus)
Page 369 of 381

Operating in dusty conditions such as unpaved or dusty roads
Inspect frequently,
service as requiredReplace cabin air filter (if equipped)
Replace engine air filter
Every 5,000 miles
(8,000 km)Inspect wheels and related components for
abnormal noise, wear, looseness or drag
Rotate tires*, inspect tire wear and measure
tread depth
Every 5,000 miles
(8,000 km) or
6 monthsChange engine oil and filter
Inspect and lubricate U-joints
Every 5,000 miles
(8,000 km),
6 months or 200
engine hoursChange engine oil and filter
Every 30,000 miles
(48,000 km)Change automatic transmission fluid (except
6R80 and TorqShifttransmissions)
Replace front wheel bearing grease/grease seals if
non-sealed bearings are used (2WD vehicles)
Every 50,000 miles
(80,000 km)Change manual transmission fluid
Change rear axle fluid (E-450 and F-450/550
only)
Every 60,000 miles
(96,000 km)Change transfer case fluid (4WD vehicles)
*If equipped with dual rear wheels, rotate front wheels when specified,
rear wheels only if unusual wear is noted
Scheduled Maintenance
369
2012 Navigator(nav)
Owners Guide, 1st Printing
USA(fus)
Page 370 of 381

Off-road operation
Inspect frequently,
service as requiredInspect steering linkage, ball joints and U-joints;
lubricate if equipped with grease fittings
Replace cabin air filter (if equipped)
Replace engine air filter
Every 5,000 miles
(8,000 km)Change engine oil and filter
Inspect wheels and related components for
abnormal noise, wear, looseness or drag
Rotate tires*, inspect tire wear and measure
tread depth
Every 30,000 miles
(48,000 km)Change automatic transmission fluid (except
6R80 and TorqShifttransmissions)
Replace front wheel bearing grease/grease seals if
non-sealed bearings are used (2WD vehicles)
Every 50,000 miles
(80,000 km)Change manual transmission fluid
Change rear axle fluid (E-450 and F-450/550
only)
Every 60,000 miles
(96,000 km)Change transfer case fluid (4WD vehicles)
*If equipped with dual rear wheels, rotate front wheels when specified,
rear wheels only if unusual wear is noted
Exclusive use of E85 (Flex Fuel Vehicles only)
Every oil change
intervalIf ran exclusively on E85, fill the fuel tank full
with regular unleaded fuel
Scheduled Maintenance
370
2012 Navigator(nav)
Owners Guide, 1st Printing
USA(fus)
Page 377 of 381

recommendations ...................168
Child safety seats - booster
seats ...........................................181
Cleaning your vehicle
engine compartment ..............301
instrument panel ....................303
interior .....................................304
plastic parts ............................302
washing ....................................299
waxing .....................................300
wheels ......................................300
wiper blades ............................302
Clock ......................................33, 71
Compass, electronic
set zone adjustment .................24
Console ........................................70
overhead ..............................69–70
Controls
power seat ...............................125
steering column ........................82
Coolant
checking and adding ..............316
refill capacities ................319, 342
specifications ..........................342
Cruise control
(see Speed control) ....................80
Customer Assistance ................264
Ford Extended Service
Plan ..................................351, 354
Getting assistance outside
the U.S. and Canada ..............295
Getting roadside assistance ...264
Getting the service you
need .........................................291
Ordering additional owner’s
literature .................................297
Utilizing the
Mediation/Arbitration
Program ...................................295D
Daytime running lamps
(see Lamps) ................................56
Dipstick
automatic transmission
fluid ..........................................336
engine oil .................................311
Driving under special
conditions ..................245, 257, 260
sand .........................................258
snow and ice ...........................261
through water .................259, 263
E
Electronic message center .........19
Emergencies, roadside
jump-starting ..........................285
running out of fuel .........284, 327
Emission control system ..........332
Engine ................................345–346
cleaning ...................................301
coolant .....................................316
fail-safe cooling .......................320
idle speed control ...................314
lubrication specifications .......342
refill capacities ........................342
service points ..........................308
starting after a collision .........266
Engine block heater .................228
Engine oil ..................................311
checking and adding ..............311
dipstick ....................................311
filter, specifications ........313, 341
recommendations ...................313
refill capacities ........................342
specifications ..........................342
Event data recording ....................7
Exhaust fumes ..........................227
Index
377
2012 Navigator(nav)
Owners Guide, 1st Printing
USA(fus)