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.
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.
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. Aftermarket products 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.
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.
87(R+M)/2 METHOD
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•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 theRefill capacities
section 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.
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Maintenance and Specifications
311
ENGINE DATA
Engine 4.0L SOHC V6
engine4.6L 3V V8
engine
Cubic inches 245 281
Required fuel 87 octane 87 octane
Firing order 1-4-2-5-3-6 1-3-7-2-6-5-4-8
Ignition system EDIS Coil on Plug
Spark plug gap 0.052–0.056 inch
(1.32–1.42 mm)0.040–0.050 inch
(1.02–1.27 mm)
1
Compression ratio 9.7:1 9.8:11Spark plug gap is not adjustable
VEHICLE DIMENSIONS
Vehicle dimensions Inches (mm)
(1) Overall length 193.5 (4916)
(2) Overall width 73.5 (1866)
(3) Maximum height* 72.8 (1849.1)
(4) Wheelbase 113.7 (2888.7)
(5) Track width, front 60.9 (1547.5)
(5) Track width, rear 62 (1574.3)
* P235/65R18 tire with roof rack and cross bars
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Maintenance and Specifications
326
service points ..................290–291
starting after a collision .........247
Engine block heater .................219
Engine oil ..................................293
checking and adding ..............293
dipstick ....................................293
filter, specifications ........296, 319
recommendations ...................296
refill capacities ........................321
specifications ..................323, 326
Exhaust fumes ..........................219
F
Fail safe cooling ........................305
Floor mats .................................104
Fluid capacities .........................321
Foglamps .....................................48
Four-Wheel Drive vehicles
driving off road .......................237
preparing to drive your
vehicle .....................................226
Fuel ............................................306
calculating fuel
economy ......................79, 90, 311
cap ...........................................308
capacity ...................................321
choosing the right fuel ...........309
comparisons with EPA fuel
economy estimates .................314
detergent in fuel .....................310
filling your vehicle with
fuel ...........................306, 308, 311
filter, specifications ........306, 319
fuel pump shut-off switch .....247
improving fuel economy ........311
octane rating ...................310, 326
quality ......................................310
running out of fuel .................310safety information relating to
automotive fuels .....................306
Fuses ..................................248, 250
G
Garage door opener ....................62
Gas cap (see Fuel cap) ............308
Gas mileage
(see Fuel economy) .................311
Gauges .........................................18
GAWR
(Gross Axle Weight Rating)
calculating ...............................209
GVWR
(Gross Vehicle Weight Rating)
calculating ...............................209
H
Hazard flashers .........................247
Head restraints .........................124
Headlamps
aiming ........................................50
bulb specifications ....................53
daytime running lights .............49
flash to pass ..............................49
high beam .................................49
Heating
heating and air conditioning
system .................................41, 43
Homelink wireless control
system ..........................................73
Hood ..........................................289
I
Ignition ...............................217, 326
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Index
334
Illuminated visor mirror .............60
Infant seats
(see Safety seats) .....................170
Inspection/maintenance (I/M)
testing ........................................316
Instrument panel
cleaning ...................................285
cluster ........................................12
J
Jack ....................................256, 260
positioning .......................256, 262
storage .....................256, 259–260
Jump-starting your vehicle ......266
K
Keyless entry system ...............116
autolock ...........................118–119
keypad .....................................116
locking and unlocking doors ..117
programming entry code .......116
Keys ...........................................122
positions of the ignition .........217
L
Lamps
bulb replacement
specifications chart ............52–53
daytime running light ...............49
fog lamps ...................................48
interior lamps ...........................52
replacing bulbs .........................56
Liftgate ......................................106
remote release ........................112
Lights, warning and indicator ....12
anti-lock brakes (ABS) ..........220
Load limits .................................202Loading instructions .................209
Locks
autolock ...........................118–119
childproof ................................110
doors ........................................108
Lubricant specifications ...323, 326
Lug nuts ....................................266
Luggage rack .............................107
Lumbar support, seats .....126, 129
M
Manual transmission
lubricant specifications ..........326
Message center ...............77, 88–89
english/metric button .........81, 94
system check button ..........80, 93
warning messages .............85, 100
Mirrors .........................................66
automatic dimming rearview
mirror ........................................66
fold away ...................................67
heated ........................................67
side view mirrors (power) .......66
Moon roof ....................................72
Motorcraft parts ........287, 306, 319
N
Navigation system .......................40
O
Octane rating ............................310
Oil (see Engine oil) ..................293
P
Parking brake ............................220
Parts (see Motorcraft parts) ....319
2006 Mountaineer(mnt)
Owners Guide (post-2002-fmt)
USA(fus)
Index
335