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 pressure or
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. The use of leaded fuel is prohibited by law
and could damage your vehicle.
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 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.
Do not use fuel containing methanol. It can damage critical fuel system
components.
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.
Do not be concerned if your engine sometimes knocks lightly. However, if
it knocks heavily under most driving conditions while you are using fuel
87(R+M)/2 METHOD
2005 Montego(mgo)
Owners Guide (post-2002-fmt)
USA_English(fus)
Maintenance and Specifications
231
•Revving the engine before turning it off may reduce fuel economy.
•Using the air conditioner or defroster may reduce fuel economy.
•You may want to turn off the speed control in hilly terrain if
unnecessary shifting between third and fourth gear occurs.
Unnecessary shifting of this type could result in reduced fuel
economy.
•Warming up a vehicle on cold mornings is not required and may
reduce fuel economy.
•Resting your foot on the brake pedal while driving may reduce fuel
economy.
•Combine errands and minimize stop-and-go driving.
Maintenance
•Keep tires properly inflated and use only recommended size.
•Operating a vehicle with the wheels out of alignment will reduce fuel
economy.
•Use recommended engine oil. Refer toLubricant specificationsin
this chapter.
•Perform all regularly scheduled maintenance items. Follow the
recommended maintenance schedule and owner maintenance checks
found inscheduled maintenance information.
Conditions
•Heavily loading a vehicle or towing a trailer may reduce fuel economy
at any speed.
•Carrying unnecessary weight may reduce fuel economy (approximately
1 mpg [0.4 km/L] is lost for every 400 lb [180 kg] of weight carried).
•Adding certain accessories to your vehicle (for example bug
deflectors, rollbars/light bars, running boards, ski/luggage racks) may
reduce fuel economy.
•Using fuel blended with alcohol may lower fuel economy.
•Fuel economy may decrease with lower temperatures during the first
8–10 miles (12–16 km) of driving.
•Driving on flat terrain offers improved fuel economy as compared to
driving on hilly terrain.
•Transmissions give their best fuel economy when operated in the top
cruise gear and with steady pressure on the gas pedal.
•Close windows for high speed driving.
2005 Montego(mgo)
Owners Guide (post-2002-fmt)
USA_English(fus)
Maintenance and Specifications
235
Adjusting automatic transmission fluid levels
Before adding any fluid, make sure the correct type is used. The type of
fluid used is normally indicated on the dipstick and also in the
Lubricant specificationssection in this chapter.
Note:Only one ATF fluid specification has been tested and approved for
use with 6-speed—Premium Automatic Transmission fluid. Mercon fluids
cannot be used in a automatic 6-speed without damage or voiding
warranty.
Use of a non-approved automatic transmission fluid may cause
internal transaxle component damage.
If necessary, add fluid in 1/2 pint (250 mL) increments through the filler
tube until the level is correct.
If an overfill occurs, excess fluid
should be removed by a qualified
technician.
An overfill condition of
transmission fluid may cause
shift and/or engagement concerns and/or possible damage.
Do not use supplemental transmission fluid additives, treatments or
cleaning agents. The use of these materials may affect transmission
operation and result in damage to internal transmission components.
MOTORCRAFT PART NUMBERS
Component 3.0L DOHC V6 Duratec engine
Engine air filter element FA-1771
Fuel filter FG-1060
Battery BXT-36R
Oil filter FL-820-S
PCV valve
1
Spark plugs2
1
The PCV valve is a critical emission component. It is one of the items
listed in thescheduled maintenance informationand is essential to
the life and performance of your vehicle and to its emissions system.
For PCV valve replacement, see your dealer or a qualified service
technician. Refer toscheduled maintenance informationfor the
appropriate intervals for changing the PCV valve.
2005 Montego(mgo)
Owners Guide (post-2002-fmt)
USA_English(fus)
Maintenance and Specifications
241
A
Accessory delay ..........................46
Air bag supplemental
restraint system ........107, 114, 116
and child safety seats ............109
description ..............107, 114, 116
disposal ....................................119
driver air bag ..........109, 115, 117
indicator light .................114, 119
operation .................109, 115, 117
passenger air bag ...109, 115, 117
side air bag ..............................114
Air cleaner filter .......................241
Air conditioning ....................26, 28
All Wheel Drive (AWD),
driving off road .........................175
Antifreeze
(see Engine coolant) ................222
Anti-lock brake system
(see Brakes) ..............................166
Anti-theft system ........................84
arming the system ....................85
disarming a triggered
system .......................................86
Audio system
(see Radio) ............................16, 19
Automatic transaxle
fluid, adding ............................239
fluid, checking ........................239
fluid, refill capacities ..............242
fluid, specification ..................247
Automatic transmission
driving an automatic
overdrive .........................170, 172
Axle
lubricant specifications ..........245
B
Battery .......................................220acid, treating emergencies .....220
jumping a disabled battery ....191
maintenance-free ....................220
replacement, specifications ...241
servicing ..................................220
BeltMinder .................................102
Brakes ........................................166
anti-lock ...................................166
anti-lock brake system
(ABS) warning light ...............166
fluid, checking and adding ....239
fluid, refill capacities ..............242
fluid, specifications .........245, 247
lubricant specifications ..245, 247
parking ....................................167
shift interlock ..........................169
Bulbs ............................................36
C
Capacities for refilling fluids ....242
Cargo net .....................................69
Cassette tape player ...................16
Cell phone use ............................68
Certification Label ....................248
Changing a tire .........................135
Child safety restraints ..............120
child safety belts ....................120
Child safety seats ......................122
attaching with tether straps ..126
in front seat ............................124
in rear seat ..............................124
Cleaning your vehicle
engine compartment ..............208
instrument panel ....................210
interior .....................................210
interior trim ............................210
plastic parts ............................209
2005 Montego(mgo)
Owners Guide (post-2002-fmt)
USA_English(fus)
Index
253
washing ....................................207
waxing .....................................207
wheels ......................................208
wiper blades ............................209
Climate control (see Air
conditioning or Heating) ......26, 28
Clock ............................................43
Clock adjust
6-CD in dash .............................20
Compass, electronic
set zone adjustment .................59
Console ........................................68
overhead ....................................43
Controls
power seat .................................90
steering column ........................51
Coolant
checking and adding ..............222
refill capacities ................227, 242
specifications ..................245, 247
Cruise control
(see Speed control) ....................48
Cupholder(s) ...............................93
Customer Assistance ................182
Ford accessories for your
vehicle .....................................211
Ford Extended Service
Plan ..........................................204
Getting assistance outside the
U.S. and Canada .....................205
Getting roadside assistance ...182
Getting the service
you need .................................198
Ordering additional owner’s
literature .................................206
The Dispute Settlement
Board .......................................201
Utilizing the Mediation/
Arbitration Program ...............204D
Daytime running lamps
(see Lamps) ................................33
Dipstick
automatic transmission
fluid ..........................................239
engine oil .................................216
Doors
lubricant specifications ..........245
Driving under special
conditions ..........................176, 179
sand .........................................177
snow and ice ...........................180
through water .................178, 181
E
Electronic message center .........57
Emergencies, roadside
jump-starting ..........................191
Emission control system ..........236
Engine ........................................247
cleaning ...................................208
coolant .....................................222
idle speed control ...................220
lubrication
specifications ..................245, 247
refill capacities ........................242
service points ..........................215
starting after a collision .........183
Engine block heater .................165
Engine oil ..................................216
change oil soon warning,
message center .......................216
checking and adding ..............216
dipstick ....................................216
filter, specifications ........219, 241
recommendations ...................219
refill capacities ........................242
2005 Montego(mgo)
Owners Guide (post-2002-fmt)
USA_English(fus)
Index
254
specifications ..................245, 247
Exhaust fumes ..........................165
F
Fluid capacities .........................242
Foglamps .....................................33
Four-Wheel Drive vehicles
driving off road .......................175
Fuel ............................................228
calculating fuel
economy ............................58, 233
cap ...........................................230
capacity ...................................242
choosing the right fuel ...........231
comparisons with EPA fuel
economy estimates .................236
detergent in fuel .....................232
filling your vehicle
with fuel ..................228, 230, 233
filter, specifications ........232, 241
fuel pump shut-off switch .....183
improving fuel economy ........233
octane rating ...................231, 247
quality ......................................232
running out of fuel .................232
safety information relating to
automotive fuels .....................228
Fuel pump shut-off switch .......183
Fuses ..........................................184
G
Garage Door Opener
(see Homelink wireless
control system) ...........................53
Gas cap (see Fuel cap) ............230
Gas mileage
(see Fuel economy) .................233
Gauges .........................................14H
Hazard flashers .........................183
Head restraints .....................87, 92
Headlamps ...................................32
aiming ..................................34–35
autolamp system .......................32
bulb specifications ....................36
daytime running lights .............33
flash to pass ..............................34
high beam .................................34
replacing bulbs .........................37
turning on and off ....................32
Heating
heating and air conditioning
system ...........................24, 26, 28
Homelink wireless control
system ..........................................53
Hood ..........................................214
I
Ignition ...............................162, 247
Infant seats
(see Safety seats) .....................122
Inspection/maintenance
(I/M) testing ..............................238
Instrument panel ........................43
cleaning ...................................210
cluster ........................................10
lighting up panel and
interior .......................................34
J
Jack ............................................135
positioning ...............................135
storage .....................................135
Jump-starting your vehicle ......191
2005 Montego(mgo)
Owners Guide (post-2002-fmt)
USA_English(fus)
Index
255