octane Mercury Grand Marquis 2004 Owner's Manuals

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 dealer or a qualified
service technician 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 dealer or a
qualified service technician.
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
affect 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
2004 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA English(fus)
Maintenance and Specifications
200

•Use the same filling rate setting (low—medium—high) each time
the tank is filled.
•Allow no more than 2 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.
•Have the vehicle loading and distribution the same every time.
Your results will be most accurate if your filling method is consistent.
Calculating fuel economy
1. Fill the fuel tank completely and record the initial odometer reading
(in kilometers or miles).
2. Each time you fill the tank, record the amount of fuel added (in liters
or gallons).
3. After at least three to five tank fill-ups, fill the fuel tank and record
the current odometer reading.
4. Subtract your initial odometer reading from the current odometer
reading.
5. Follow one of the simple calculations in order to determine fuel
economy:
Calculation 1:Multiply liters used by 100, then divide by total
kilometers traveled.
Calculation 2:Divide total miles traveled by total gallons used.
Keep a record for at least one month and record the type of driving (city
or highway). This will provide an accurate estimate of the vehicle’s fuel
economy under current driving conditions. Additionally, keeping records
during summer and winter will show how temperature impacts fuel
economy. In general, lower temperatures give lower fuel economy.
Driving style—good driving and fuel economy habits
Give consideration to the lists that follow and you may be able to change
a number of variables and improve your fuel economy.
Habits
•Smooth, moderate operation can yield up to 10% savings in fuel.
•Steady speeds without stopping will usually give the best fuel
economy.
2004 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA English(fus)
Maintenance and Specifications
202

2Add 118 ml (4 oz.) of Additive Friction Modifier XL-3 or equivalent
meeting Ford specification EST-M2C118-A for complete refill of
Traction-Lok rear axles.
3Ensure the correct automatic transmission fluid is used. Transmission
fluid requirements are indicated on the dipstick or on the dipstick
handle. MERCONand MERCONV are not interchangeable. DO NOT
mix MERCONand MERCONV. Refer to yourScheduled Maintenance
Guideto determine the correct service interval.
ENGINE DATA
Engine 4.6L V8 engine
Cubic inches 281
Required fuel 87 octane
Firing order 1-3-7-2-6-5-4-8
Ignition system Coil on plug
Compression ratio 9.4:1
VEHICLE DIMENSIONS (AT CURB MASS)
Vehicle dimensions mm (in)
(1) Overall length 5382 (211.9)
(2) Overall width 1987 (78.2)
(3) Overall height 1485 (58.5)
(4) Wheelbase 2911 (114.6)
(5) Track - Front 1611 (63.4)
(5) Track - Rear 1666 (65.6)
2004 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA English(fus)
Maintenance and Specifications
228

recommendations ...................187
refill capacities ........................225
specifications ..................226, 228
Exhaust fumes ..........................127
F
Fail safe cooling ........................195
Floor mats ...................................71
Fluid capacities .........................225
Fuel ............................................196
calculating fuel
economy ............................52, 201
cap ...........................................198
capacity ...................................225
choosing the right fuel ...........199
comparisons with EPA fuel
economy estimates .................204
detergent in fuel .....................200
filling your vehicle
with fuel ..................196, 198, 201
filter, specifications ........201, 224
fuel pump shut-off switch .....145
improving fuel economy ........201
octane rating ...................200, 228
quality ......................................200
running out of fuel .................200
safety information relating to
automotive fuels .....................196
Fuses ..................................146–147
G
Garage Door Opener
(see Homelink wireless control
system) ........................................63
Gas cap (see Fuel cap) ............198
Gas mileage
(see Fuel economy) .................201
Gauges .........................................15H
Hazard flashers .........................145
Head restraints ...........................86
Headlamps ...................................36
aiming ........................................38
autolamp system .......................36
bulb specifications ....................40
daytime running lights .............36
flash to pass ..............................37
high beam .................................37
replacing bulbs .........................41
turning on and off ....................36
Heating
heating and air conditioning
system .................................32–33
HomeLink universal
transceiver (see
Garage door opener) ............53, 66
Homelink wireless control
system ..........................................63
Hood ..........................................182
I
Ignition ...............................123, 228
Infant seats
(see Safety seats) .....................114
Inspection/maintenance
(I/M) testing ..............................206
Instrument panel
cleaning ...................................178
cluster ........................................10
lighting up panel
and interior ...............................37
J
Jack ............................................153
Index
237

positioning ...............................153
storage .....................................153
Jump-starting your vehicle ......159
K
Keyless entry system .................80
autolock .....................................79
keypad .......................................80
programming entry code .........80
Keys .................................72, 82–84
positions of the ignition .........123
L
Lamps
autolamp system .......................36
bulb replacement
specifications chart ..................40
daytime running light ...............36
headlamps .................................36
headlamps, flash to pass ..........37
instrument panel, dimming .....37
interior lamps .....................40–41
replacing bulbs ....... 40–41, 43–45
Lane change indicator
(see Turn signal) ........................39
Lights, warning and indicator ....10
anti-lock brakes (ABS) ..........129
Limited slip axle
(see Traction Loc) ....................137
Load limits .................................138
Locks
autolock .....................................79
childproof ..................................73
doors ..........................................72
Lubricant specifications ...226, 228
Lumbar support, seats ...............88
M
Message center ...........................67reset button ..............................67
select button .............................68
Mirrors .........................................47
automatic dimming rearview
mirror ........................................58
fold away ...................................58
heated ........................................57
side view mirrors (power) .......57
Moon roof ....................................62
Motorcraft parts ................201, 224
O
Octane rating ............................200
Oil (see Engine oil) ..................184
P
Panic alarm feature, remote
entry system ................................76
Parking brake ............................129
Parts (see Motorcraft parts) ....224
Pedals (see Power
adjustable foot pedals) ...............58
Power adjustable foot pedals .....58
Power distribution box
(see Fuses) ...............................150
Power door locks ..................72, 79
Power mirrors .............................57
Power Point
Cigar lighter ..............................55
Power steering ..................131–132
fluid, checking and adding ....206
fluid, refill capacity ................225
fluid, specifications .................226
Power Windows ...........................56
R
Radio ................................20, 23, 26
Index
238