cooling LINCOLN NAVIGATOR 2010 User Guide

4. When you are sure that all the pressure has been released, use the
cloth to turn it counterclockwise and remove the cap.
5. Fill the coolant reservoir slowly with the proper coolant mixture, to
within the COLD FILL RANGE or the FULL COLD level on the reservoir.
If you removed the radiator cap in an overflow system, fill the radiator
until the coolant is visible and radiator is almost full.
6. Replace the cap. Turn until tightly installed. Cap must be tightly
installed to prevent coolant loss.
After any coolant has been added, check the coolant concentration (refer
toChecking engine coolant). If the concentration is not 50/50
(protection to –34°F/–36°C), drain some coolant and adjust the
concentration. It may take several drains and additions to obtain a 50/50
coolant concentration.
Whenever coolant has been added, the coolant level in the coolant
reservoir should be checked the next few times you drive the vehicle. If
necessary, add enough 50/50 concentration of engine coolant and
distilled water to bring the liquid level to the proper level.
If you have to add more than 1.0 quart (1.0 liter) of engine coolant per
month, have your authorized dealer check the engine cooling system.
Your cooling system may have a leak. Operating an engine with a low
level of coolant can result in engine overheating and possible engine
damage.
Recycled engine coolant
Ford Motor Company does NOT recommend the use of recycled engine
coolant since a Ford-approved recycling process is not yet available.
Used engine coolant should be disposed of in an appropriate
manner. Follow your community’s regulations and standards for recycling
and disposing of automotive fluids.
Coolant refill capacity
To find out how much fluid your vehicle’s cooling system can hold, refer
toMaintenance product specifications and capacitiesin this chapter.
Fill your engine coolant reservoir as outlined inAdding engine coolant
in this section.
Severe climates
If you drive in extremely cold climates (less than –34°F [–36°C]):
•It may be necessary to increase the coolant concentration
above 50%.
Maintenance and Specifications
348
2010 Navigator(nav)
Owners Guide(own2002), 1st Printing
USA(fus)

•NEVER increase the coolant concentration above 60%.
•Increased engine coolant concentrations above 60% will
decrease the overheat protection characteristics of the engine
coolant and may cause engine damage.
•Refer to the chart on the coolant container to ensure the
coolant concentration in your vehicle will provide adequate
freeze protection at the temperatures in which you drive in the
winter months.
If you drive in extremely hot climates:
•It is still necessary to maintain the coolant concentration
above 40%.
•NEVER decrease the coolant concentration below 40%.
•Decreased engine coolant concentrations below 40% will
decrease the corrosion protection characteristics of the engine
coolant and may cause engine damage.
•Decreased engine coolant concentrations below 40% will
decrease the freeze protection characteristics of the engine
coolant and may cause engine damage.
•Refer to the chart on the coolant container to ensure the
coolant concentration in your vehicle will provide adequate
protection at the temperatures in which you drive.
Vehicles driven year-round in non-extreme climates should use a 50/50
mixture of engine coolant and distilled water for optimum cooling system
and engine protection.
What you should know about fail-safe cooling
If the engine coolant supply is depleted, this feature allows the vehicle to
be driven temporarily before incremental component damage is incurred.
The “fail-safe” distance depends on ambient temperatures, vehicle load
and terrain.
How fail-safe cooling works
If the engine begins to overheat:
•The engine coolant temperature gauge will move to the red (hot)
area.
•The engine coolant temperature
symbol will illuminate.
•The
indicator light will illuminate.
If the engine reaches a preset over-temperature condition, the engine
will automatically switch to alternating cylinder operation. Each disabled
cylinder acts as an air pump and cools the engine.
Maintenance and Specifications
349
2010 Navigator(nav)
Owners Guide(own2002), 1st Printing
USA(fus)

Item Capacity Ford part nameFord part number /
Ford specification
Cooling system stop
leak pellets—Motorcraft Cooling
System Stop Leak PelletsVC-6 /
WSS-M99B37-B6
Engine oil 7.0 quarts (6.6L)•Motorcraft SAE 5W-20
Premium Synthetic
Blend Motor Oil
•Motorcraft SAE 5W20
Full Synthetic Motor Oil
(US)
•Motorcraft SAE 5W-20
Super Premium Motor
Oil
•Motorcraft SAE 5W-20
Synthetic Motor Oil
(Canada)
2
•XO-5W20-QSP (US)
•XO-5W20-QFS (US)
•CXO-5W20- LSP12
(Canada)
•CXO-5W20-LFS12
(Canada) /
WSS-M2C930-A and API
Certification Mark
Automatic transmission
fluid
(6R80)13.1 quarts
(12.4L)
3
Motorcraft
MERCON
LV AT F
4
XT-10-QLV /
MERCON
LV
Power steering fluidFill between MIN
and MAX lines on
reservoirMotorcraft
MERCON
VATFXT-5-QM /
MERCON
V
Front axle fluid (4X4) 3.5 pints (1.7L)Motorcraft SAE 80W-90
Premium Rear Axle LubeXY-80W90-QL /
WSP-M2C197-A
Maintenance and Specifications
369
2010 Navigator(nav)
Owners Guide(own2002), 1st Printing
USA(fus)

Child safety seats - booster
seats ...........................................211
Cleaning your vehicle
engine compartment ..............330
instrument panel ....................332
interior .............................332–333
plastic parts ............................331
washing ....................................328
waxing .....................................329
wheels ......................................329
wiper blades ............................331
Clock ..........................................103
Compass, electronic
set zone adjustment .................25
Console ......................................102
overhead ..........................101–102
Controls
power seat ...............................157
steering column ......................112
Coolant
checking and adding ..............345
refill capacities ................348, 368
specifications ..........................368
Cruise control
(see Speed control) ..................110
Customer Assistance ................292
Ford Extended Service Plan...377
Getting assistance outside the
U.S. and Canada .....................325
Getting roadside assistance ...292
Getting the service you
need .........................................321
Ordering additional owner’s
literature .................................326
Utilizing the
Mediation/Arbitration
Program ...................................325D
Daytime running lamps
(see Lamps) ................................87
Dipstick
automatic transmission fluid...364
engine oil .................................340
Driving under special
conditions ..................275, 285, 288
sand .........................................286
snow and ice ...........................289
through water .................287, 291
DVD system .................................47
E
Electronic message center .........19
Emergencies, roadside
jump-starting ..........................313
running out of fuel .........312, 356
Emission control system ..........360
Engine ................................371–372
cleaning ...................................330
coolant .....................................345
fail-safe cooling .......................349
idle speed control ...................343
lubrication specifications .......368
refill capacities ........................368
service points ..........................337
starting after a collision .........294
Engine block heater .................258
Engine oil ..................................340
change oil soon warning,
message center .......................340
checking and adding ..............340
dipstick ....................................340
filter, specifications ........342, 367
recommendations ...................342
refill capacities ........................368
specifications ..........................368
Index
381
2010 Navigator(nav)
Owners Guide(own2002), 1st Printing
USA(fus)

Event data recording ....................7
Exhaust fumes ..........................258
F
Fail safe cooling ........................349
Family entertainment system ....47
Fleet MyKey programming ......148
Flexible Fuel Vehicle (FFV) ....351
Fluid capacities .........................368
Fog lamps ....................................87
Four-Wheel Drive vehicles .......281
control trac .............................281
description ..............................282
driving off road .......................283
indicator light .........................281
preparing to drive your
vehicle .....................................270
Fuel ............................................351
calculating fuel
economy
............................21, 357
cap ...........................................353
capacity ...................................368
choosing the right fuel ...........354
comparisons with EPA fuel
economy estimates .................360
detergent in fuel .....................356
filler funnel .............................356
filling your vehicle with
fuel ...........................351, 353, 357
filter, specifications ........350, 367
fuel pump shut-off switch .....294
improving fuel economy ........357
octane rating ...........355, 371–372
quality ......................................355
running out of fuel .........312, 356
safety information relating to
automotive fuels .....................351Fuel - flex fuel vehicle
(FFV) .........................351, 354–355
Fuses ..................................295–296
G
Garage door opener ..................114
Gas cap (see Fuel cap) ............353
Gas mileage
(see Fuel economy) .................357
Gauges .........................................17
H
Hazard flashers .........................293
Headlamps ...................................86
aiming ........................................88
autolamp system .......................86
bulb specifications ....................92
daytime running lights .............87
flash to pass ..............................87
high beam .................................87
turning on and off ....................86
Homelink wireless control
system ........................................115
Hood ..........................................336
I
Ignition .......................254, 371–372
Illuminated visor mirror ...........100
Infant seats
(see Safety seats) .....................200
Inspection/maintenance (I/M)
testing ........................................362
Instrument panel
cleaning ...................................332
cluster ........................................12
Index
382
2010 Navigator(nav)
Owners Guide(own2002), 1st Printing
USA(fus)