2007 Mercury Montego 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% ethyl alcohol. Your vehicle was not designed to run on E85 fuels
that are blended with a maximum of 85% ethyl alcohol. 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
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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.
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.
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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 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 Montego(mgo)
Owners Guide (post-2002-fmt)
USA(fus)
Maintenance and Specifications
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ENGINE DATA
Engine 3.0L-DOHC V6 engine
Displacement 183 cubic inches
Required fuel 87 octane
Firing order 1–4–2–5–3–6
Spark plug gap (0.052–0.056 inch) 1.32–1.42 mm
Ignition system Coil on plug
Compression ratio 10.0:1
Engine drivebelt routing
•3.0L V6 Engine
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Foglamps .....................................53
Four-Wheel Drive vehicles
driving off road .......................190
Fuel ............................................251
calculating fuel
economy ............................79, 256
cap ...........................................253
capacity ...................................266
choosing the right fuel ...........254
comparisons with EPA fuel
economy estimates .................259
detergent in fuel .....................255
filling your vehicle with
fuel ...........................251, 253, 256
filter, specifications ........251, 265
fuel pump shut-off switch .....199
improving fuel economy ........256
octane rating ...................254, 268
quality ......................................255
running out of fuel .................255
safety information relating to
automotive fuels .....................251
Fuel pump shut-off switch .......199
Fuses ..........................................200
G
Gas cap (see Fuel cap) ............253
Gas mileage
(see Fuel economy) .................256
Gauges .........................................14
H
Hazard flashers .........................199
Head restraints .........106, 111–112
Headlamps ...................................52
aiming ........................................54
autolamp system .......................52
bulb specifications ....................57daytime running lights .............54
flash to pass ..............................53
high beam .................................53
replacing bulbs .........................57
turning on and off ....................52
Heating
heating and air conditioning
system .................................46, 48
Homelink wireless control
system ..........................................74
Hood ..........................................236
I
Ignition ...............................177, 268
Illuminated visor mirror .............62
Infant seats
(see Safety seats) .....................145
Inspection/maintenance (I/M)
testing ........................................261
Instrument panel ........................63
cleaning ...................................231
cluster ........................................10
lighting up panel and
interior .......................................54
J
Jack ............................................206
positioning ...............................206
storage .....................................206
Jump-starting your vehicle ......213
K
Keyless entry system .................99
autolock .....................................88
keypad .......................................99
locking and unlocking doors ..100
programming entry code .........99
2007 Montego(mgo)
Owners Guide (post-2002-fmt)
USA(fus)
Index
275

Keys ...........................................102
positions of the ignition .........177
L
Lamps
autolamp system .......................52
bulb replacement
specifications chart ..................57
daytime running light ...............54
fog lamps ...................................53
headlamps .................................52
headlamps, flash to pass ..........53
instrument panel, dimming .....54
interior lamps .....................56–57
replacing bulbs ...................57, 60
Lane change indicator
(see Turn signal) ........................56
Lights, warning and indicator ....10
anti-lock brakes (ABS) ..........181
Load limits .................................168
Locks
autolock .....................................88
childproof ..................................91
doors ..........................................88
Lubricant specifications ...........266
Lug nuts ....................................213
Lumbar support, seats .............107
M
Message center ...........................78
english/metric button ...............83
system check button ................83
warning messages .....................83
Mirrors .........................................67
automatic dimming rearview
mirror ........................................67
fold away ...................................68
heated ........................................68side view mirrors (power) .......67
Moon roof ....................................72
Motorcraft parts ........233, 251, 265
N
Navigation system .......................30
O
Octane rating ............................254
Oil (see Engine oil) ..................239
P
Parking brake ............................181
Parts (see Motorcraft parts) ....265
Passenger Occupant
Classification Sensor .................115
Power adjustable foot pedals .....68
Power distribution box
(see Fuses) ...............................203
Power door locks ........................88
Power mirrors .............................67
Power point .................................64
Power steering ..........................183
fluid, checking and adding ....261
fluid, refill capacity ................266
fluid, specifications .................266
Power Windows ...........................65
R
Radio ......................................16, 21
Relays ........................................200
Remote entry system .................93
illuminated entry ................97–98
2007 Montego(mgo)
Owners Guide (post-2002-fmt)
USA(fus)
Index
276