2007 LINCOLN NAVIGATOR octane

If you must replace the fuel filler cap, replace it with a fuel filler
cap that is designed for your vehicle. The customer warranty may
be void for any damage to the fuel tank or fuel system if the
correct genuine Ford or Motorcraft fuel filler cap is not used.
The fuel system may be under pressure. If the fuel filler cap is
venting vapor or if you hear a hissing sound, wait until it stops
before completely removing the fuel filler cap. Otherwise, fuel may
spray out and injure you or others.
If you do not use the proper fuel filler cap, excessive vacuum in
the fuel tank may damage the fuel system or cause the fuel cap
to disengage in a collision, which may result in possible personal injury.
Choosing the right fuel
Use only UNLEADED fuel or UNLEADED fuel blended with a maximum
of 10% ethanol. Your vehicle was not designed to run on E85 fuels that
are blended with a maximum of 85% ethanol. The use of leaded fuel is
prohibited by law and could damage your vehicle. Do not use fuel
containing methanol. It can damage critical fuel system components.
Your vehicle was not designed to use fuel or fuel additives with metallic
compounds, including manganese-based additives. Studies indicate that
these additives can cause your vehicle’s emission control system to
deteriorate more rapidly. In Canada, premium grade fuel generally
contains more metallic additives than regular grade fuel. We recommend
using regular grade fuel. In Canada, many fuels contain metallic
additives, but fuels free of such additives may be available; check with
your local fuel dealer.
Repairs to correct the effects of using a fuel for which your vehicle was
not designed may not be covered by your warranty.
Octane recommendations
Your vehicle is designed to use
“Regular” unleaded gasoline with
pump (R+M)/2 octane rating of 87.
We do not recommend the use of
gasolines labeled as “Regular” that
are sold with octane ratings of 86 or lower in high altitude areas.
87(R+M)/2 METHOD
2007 Navigator(nav)
Owners Guide (post-2002-fmt)
USA(fus)
Maintenance and Specifications
284

Do not be concerned if your engine sometimes knocks lightly. However, if
it knocks heavily under most driving conditions while you are using fuel
with the recommended octane rating, see your authorized dealer to
prevent any engine damage.
Fuel quality
If you are experiencing starting, rough idle or hesitation driveability
problems, try a different brand of unleaded gasoline. “Premium” unleaded
gasoline is not recommended for vehicles designed to use “Regular”
unleaded gasoline because it may cause these problems to become more
pronounced. If the problems persist, see your authorized dealer.
Do not add aftermarket fuel additive products to your fuel tank. It should
not be necessary to add any aftermarket products to your fuel tank if you
continue to use high quality fuel of the recommended octane rating. These
products have not been approved for your engine and could cause damage
to the fuel system. Repairs to correct the effects of using an aftermarket
product in your fuel may not be covered by your warranty.
Many of the world’s automakers approved the World-wide Fuel Charter
that recommends gasoline specifications to provide improved
performance and emission control system protection for your vehicle.
Gasolines that meet the World-wide Fuel Charter should be used when
available. Ask your fuel supplier about gasolines that meet the
World-wide Fuel Charter.
Cleaner air
Ford endorses the use of reformulated “cleaner-burning” gasolines to
improve air quality, per the recommendations in theChoosing the Right
Fuel section.
Running out of fuel
Avoid running out of fuel because this situation may have an adverse
effect on powertrain components.
If you have run out of fuel:
•You may need to cycle the ignition from OFF to ON several times after
refueling to allow the fuel system to pump the fuel from the tank to
the engine. On restarting, cranking time will take a few seconds longer
than normal.
•Normally, adding one gallon of fuel is enough to restart the engine. If
the vehicle is out of fuel and on a steep grade, more than one gallon
may be required.
2007 Navigator(nav)
Owners Guide (post-2002-fmt)
USA(fus)
Maintenance and Specifications
285

•Theindicator may come on. For more information on the “check
engine” or the “service engine soon” indicator, refer toWarning lights
and chimesin theInstrument Clusterchapter.
ESSENTIALS OF GOOD FUEL ECONOMY
Measuring techniques
Your best source of information about actual fuel economy is you, the
driver. You must gather information as accurately and consistently as
possible. Fuel expense, frequency of fill-ups or fuel gauge readings are
NOT accurate as a measure of fuel economy. We do not recommend
taking fuel economy measurements during the first 1,000 miles
(1,600 km) of driving (engine break-in period). You will get a more
accurate measurement after 2,000 miles-3,000 miles
(3,000 km–5,000 km).
Filling the tank
The advertised fuel capacity of the fuel tank on your vehicle is equal to
the rated refill capacity of the fuel tank as listed in theMaintenance
product specifications and capacitiessection of this chapter.
The advertised capacity is the amount of the indicated capacity and the
empty reserve combined. Indicated capacity is the difference in the
amount of fuel in a full tank and a tank when the fuel gauge indicates
empty. Empty reserve is the small amount of fuel remaining in the fuel
tank after the fuel gauge indicates empty.
The amount of usable fuel in the empty reserve varies and should
not be relied upon to increase driving range. When refueling your
vehicle after the fuel gauge indicates empty, you might not be
able to refuel the full amount of the advertised capacity of the
fuel tank due to the empty reserve still present in the tank.
For consistent results when filling the fuel tank:
•Turn the engine/ignition switch to the off position prior to refueling,
an error in the reading will result if the engine is left running.
•Use the same filling rate setting (low — medium — high) each time
the tank is filled.
•Allow no more than two automatic click-offs when filling.
•Always use fuel with the recommended octane rating.
•Use a known quality gasoline, preferably a national brand.
•Use the same side of the same pump and have the vehicle facing the
same direction each time you fill up.
2007 Navigator(nav)
Owners Guide (post-2002-fmt)
USA(fus)
Maintenance and Specifications
286

ENGINE DATA
Engine 5.4L V8 engine
Cubic inches 330
Required fuel 87 octane
Firing order 1-3-7-2-6-5-4-8
Ignition system Coil on plug
Spark plug gap
10.040–0.050 inch (1.02–1.27 mm)
Compression ratio 9.85:1
1Spark plug gap not adjustable
Engine drivebelt routing
•5.4L V8 Engine
2007 Navigator(nav)
Owners Guide (post-2002-fmt)
USA(fus)
Maintenance and Specifications
300

Fluid capacities .........................297
Foglamps .....................................39
Four-Wheel Drive vehicles .......212
control trac .............................212
description ..............................212
driving off road .......................213
indicator light .........................212
preparing to drive your
vehicle .....................................205
Fuel ............................................281
calculating fuel
economy ............................74, 286
cap ...........................................283
capacity ...................................297
choosing the right fuel ...........284
comparisons with EPA fuel
economy estimates .................289
detergent in fuel .....................285
filling your vehicle with
fuel ...........................281, 283, 286
filter, specifications ........281, 296
fuel pump shut-off switch .....223
improving fuel economy ........286
octane rating ...................284, 300
quality ......................................285
running out of fuel .................285
safety information relating to
automotive fuels .....................281
Fuses ..................................224–225
G
Gas cap (see Fuel cap) ............283
Gas mileage
(see Fuel economy) .................286
Gauges .........................................15
H
Hazard flashers .........................222Headlamps ...................................39
aiming ........................................41
autolamp system .......................39
bulb specifications ....................44
daytime running lights .............40
flash to pass ..............................40
high beam .................................40
turning on and off ....................39
Homelink wireless control
system ..........................................67
Hood ..........................................266
I
Ignition ...............................192, 300
Illuminated visor mirror .............51
Infant seats
(see Safety seats) .....................146
Inspection/maintenance (I/M)
testing ........................................291
Instrument panel
cleaning ...................................261
cluster ........................................10
J
Jack ............................................232
positioning ...............................232
storage .....................................232
Jump-starting your vehicle ......241
K
Keyless entry system
autolock ...............................89, 91
keypad .....................................101
locking and unlocking doors ..102
programming entry code .......101
Keys ...................................102–104
positions of the ignition .........192
2007 Navigator(nav)
Owners Guide (post-2002-fmt)
USA(fus)
Index
307

L
Lamps
autolamp system .......................39
bulb replacement
specifications chart ..................44
daytime running light ...............40
fog lamps ...................................39
headlamps .................................39
headlamps, flash to pass ..........40
interior lamps ...............42–43, 45
replacing bulbs .........................47
Lane change indicator
(see Turn signal) ........................42
Liftgate ......................83, 87, 95–96
Lights, warning and indicator ....10
anti-lock brakes (ABS) ..........197
Load limits .................................178
Loading instructions .................184
Locks
autolock ...............................89, 91
childproof ..................................93
doors ..........................................89
Lubricant specifications ...........297
Lug nuts ....................................241
Luggage rack ...............................88
Lumbar support, seats .............106
M
Message center ...........................71
english/metric button ...............78
system check button ................78
warning messages .....................79
Mirrors .........................................58
automatic dimming rearview
mirror ........................................57
fold away ...................................58heated ........................................59
programmable memory ............97
signal .........................................59
Moon roof ....................................66
Motorcraft parts ........263, 281, 296
N
Navigation system .......................32
O
Octane rating ............................284
Oil (see Engine oil) ..................270
P
Panic alarm feature, remote
entry system ................................96
Parking brake ............................198
Parts (see Motorcraft parts) ....296
Pedals (see Power adjustable
foot pedals) .................................59
Power adjustable foot pedals .....59
Power deployable running
boards ..........................................60
Power distribution box
(see Fuses) .......................225, 228
Power door locks ........................89
Power liftgate ..............................83
Power mirrors .............................58
Power point .................................54
Power steering ..................203–204
fluid, checking and adding ....292
fluid, refill capacity ................297
fluid, specifications .................297
Power Windows ...........................55
2007 Navigator(nav)
Owners Guide (post-2002-fmt)
USA(fus)
Index
308