WARNING:The fuel system may be under pressure. If you hear
a hissing sound near the fuel filler door (Easy Fuel™ “no cap”
fuel system), do not refuel until the sound stops. Otherwise, fuel may
spray out, which could cause serious personal injury.
Choosing the right fuel
Use only UNLEADED fuel or UNLEADED fuel blended with a maximum
of 10% ethanol. Do not use fuel ethanol (E85), diesel, methanol, leaded
fuel or any other 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.
Note:Use of any fuel other than those recommended may cause
powertrain damage, a loss of vehicle performance, and repairs may not
be covered under warranty.
Octane recommendations
Your vehicle is designed to use
“Regular” unleaded gasoline with a
pump (R+M)/2 octane rating of 87.
We do not recommend the use of
gasolines labeled as “Regular” in
high altitude areas that are sold with octane ratings less than 87.
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
87(R+M)/2 METHOD
2009 Mariner(mrn)
Owners Guide, 2nd Printing
USA(fus)
Maintenance and Specifications
286
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:Divide total miles traveled by total gallons used.
Calculation 2:Multiply liters used by 100, then divide by total
kilometers traveled.
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.
•Idling for long periods of time (greater than one minute) may waste
fuel.
•Anticipate stopping; slowing down may eliminate the need to stop.
•Sudden or hard accelerations may reduce fuel economy.
•Slow down gradually.
•Driving at reasonable speeds (traveling at 55 mph [88 km/h] uses 15%
less fuel than traveling at 65 mph [105 km/h]).
•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 the top gears 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.
2009 Mariner(mrn)
Owners Guide, 2nd Printing
USA(fus)
Maintenance and Specifications
290
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 blade and also in the
Maintenance product specifications and capacitiessection in this
chapter.
Use of a non-approved automatic transmission fluid may cause
internal transmission 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 an authorized
dealer.
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.
AIR FILTER
Refer toscheduled maintenance informationfor the appropriate
intervals for changing the air filter element.
When changing the air filter element, use only the air filter element
listed. Refer toMotorcraft part numbersin this chapter.
WARNING:To reduce the risk of vehicle damage and/or
personal burn injuries do not start your engine with the air
cleaner removed and do not remove it while the engine is running.
2009 Mariner(mrn)
Owners Guide, 2nd Printing
USA(fus)
Maintenance and Specifications
297
A
Accessory delay ..........................62
AdvanceTrac ..............................201
Air cleaner filter ...............297, 299
Air conditioning
automatic temperature
control system ..........................39
manual heating and air
conditioning system .................36
Airbag supplemental restraint
system ................125–126, 134, 137
and child safety seats ............127
description ..............126, 134, 137
disposal ....................................140
driver airbag ............128, 135, 138
indicator light .........134, 136, 139
operation .................128, 135, 138
passenger airbag .....128, 135, 138
side airbag ...............................134
All Wheel Drive (AWD),
driving off road .........................214
Ambient mood/lighting ...............48
Ambulance packages ....................8
AM/FM .........................................18
Antifreeze
(see Engine coolant) ................277
Anti-lock brake system
(see Brakes) ..............................199
Anti-theft system ........................97
Audio system (see Radio) .........18
Automatic transmission
driving an automatic
overdrive .................................210
fluid, refill capacities ..............300
fluid, specification ..................300Auxiliary input jack
(Line in) ......................................26
Auxiliary power point .................60
Axle
lubricant specifications ..........300
refill capacities ........................300
B
Battery .......................................275
acid, treating emergencies .....275
jumping a disabled battery ....242
maintenance-free ....................275
replacement, specifications ...299
servicing ..................................275
Belt-Minder.............................121
Booster seats .............................153
Brakes ................................198–199
anti-lock ...................................199
anti-lock brake system (ABS)
warning light ...........................199
fluid, checking and adding ....295
fluid, refill capacities ..............300
fluid, specifications .................300
lubricant specifications ..........300
parking ....................................200
shift interlock ..........................208
Bulbs ............................................49
C
Capacities for refilling fluids ....300
Cargo area shade ........................79
Cargo management system ........80
CD ................................................18
Cell phone use ..............................8
2009 Mariner(mrn)
Owners Guide, 2nd Printing
USA(fus)
Index
307
Child safety seats ......................144
attaching with tether
straps .......................................150
in front seat ............................145
in rear seat ..............................145
LATCH .....................................148
recommendations ...................142
Child safety seats - booster
seats ...........................................153
Cleaning your vehicle
engine compartment ..............259
instrument panel ....................261
interior .....................................262
plastic parts ............................260
washing ....................................257
waxing .....................................258
wheels ......................................258
wiper blades ............................260
Climate control (see Air
conditioning or Heating) ......36, 39
Clock ............................................18
Compass, electronic ....................57
calibration .................................59
set zone adjustment .................58
Console ........................................59
overhead ....................................57
Controls
power seat ...............................105
steering column ........................67
Coolant
checking and adding ..............277
refill capacities ................281, 300
specifications ..........................300
Cruise control
(see Speed control) ....................64
Customer Assistance ................221
Ford Extended Service
Plan ..........................................254Getting assistance outside the
U.S. and Canada .....................254
Getting roadside assistance ...221
Getting the service you
need .........................................250
Ordering additional owner’s
literature .................................255
Utilizing the
Mediation/Arbitration
Program ...................................253
D
Dipstick
automatic transmission
fluid ..........................................295
engine oil .................................271
Driving under special
conditions ..................212, 215, 218
sand .........................................216
snow and ice ...........................219
through water .................217, 220
E
Electronic message center .........70
Emergencies, roadside
jump-starting ..........................242
running out of fuel .........242, 287
Emergency Flashers .................222
Emission control system ..........292
Engine ........................................302
cleaning ...................................259
coolant .....................................277
fail-safe cooling .......................281
idle speed control ...................275
lubrication specifications .......300
refill capacities ........................300
service points ..................267–268
starting after a collision .........223
Engine block heater .................196
2009 Mariner(mrn)
Owners Guide, 2nd Printing
USA(fus)
Index
308
Engine oil ..................................271
checking and adding ..............271
dipstick ....................................271
filter, specifications ........274, 299
recommendations ...................274
refill capacities ........................300
specifications ..........................300
Event data recording ....................7
Exhaust fumes ..........................196
F
Fail safe cooling ........................281
Fluid capacities .........................300
Fog lamps ....................................44
Four-Wheel Drive vehicles
driving off road .......................214
preparing to drive your
vehicle .....................................207
Fuel ............................................283
calculating fuel
economy ............................72, 288
cap ...........................................285
capacity ...................................300
choosing the right fuel ...........286
comparisons with EPA fuel
economy estimates .................291
detergent in fuel .....................287
filler funnel .............................287
filling your vehicle with
fuel ...........................283, 285, 289
filter, specifications ........282, 299
fuel pump shut-off switch .....223
improving fuel economy ........288
octane rating ...................286, 302
quality ......................................286
running out of fuel .........242, 287
safety information relating to
automotive fuels .....................283
Fuses ..................................223–224G
Gas cap (see Fuel cap) ............285
Gas mileage
(see Fuel economy) .................288
Gauges .........................................16
H
Hazard flashers .........................222
Head restraints .........................107
Headlamps ...................................43
aiming ..................................45–46
bulb specifications ....................50
flash to pass ..............................45
high beam .................................45
replacing bulbs .........................51
turning on and off ....................43
Heating
heating and air conditioning
system .......................................39
manual heating and air
conditioning system .................36
Hood ..........................................266
I
Ignition ...............................193, 302
Illuminated visor mirror .............57
Infant seats
(see Safety seats) .....................144
Inspection/maintenance (I/M)
testing ........................................294
Instrument panel
cleaning ...................................261
cluster ........................................12
lighting up panel and
interior .......................................45
2009 Mariner(mrn)
Owners Guide, 2nd Printing
USA(fus)
Index
309