1999 Mercury Mountaineer octane

Octane recommendations
Your vehicle is designed to use
ªRegularº unleaded gasoline with an
(R+M)/2 octane rating of 87. We do
not recommend the use of gasolines
labeled as ªRegularº 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 during a cold start, try a different brand of ªRegularº unleaded
gasoline. ªPremiumº unleaded gasoline is not recommended (particularly
in the United States) because it may cause these problems to become
more pronounced. If the problems persist, see your dealer or a qualified
service technician.
The American Automobile Manufacturers Association (AAMA) issued a
fuel specification to provide information on high quality fuels that
optimize the performance of your vehicle. We recommend the use of
fuels that meet the AAMA specification if they are available.
It should not be necessary to add any aftermarket products to your fuel
tank if you continue to use a high-quality fuel.
Cleaner air
Ford approves the use of gasolines to improve air quality, including
reformulated gasolines that contain oxygenates up to 10% ethanol or
15% MTBE.
87(R+M)/2 METHOD
Maintenance and care
215

Filling the tank
For consistent results:
²Use the same filling rate setting (low Ð medium Ð high) each time
the tank is filled.
²Allow three automatic click-offs when filling.
²Always use the recommended octane rating of a known quality
gasoline, preferably a national brand.
²Use the same side of the same pump and have the vehicle facing the
same direction each time you fill up.
²Have 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.
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 kilometer (mileage) reading.
4. Follow one of the simple calculations in order to determine fuel
economy:
Multiply liters used by 100, then divide by total kilometers
traveled.
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. Additionally, keeping records during summer and winter will
show how temperature impacts fuel economy. In general, lower
temperatures give lower fuel economy.
Driving style Ð 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.
Maintenance and care
218

ItemFord part
name or
equivalentFord part
numberFord
specification
Windshield
washer fluidUltra-Clear
Windshield
Washer
ConcentrateC9AZ-19550-AC ESR-M17P5-A
1If your engine coolant is green in color, use Ford Premium Cooling
System Fluid. If your coolant is orange in color, use Ford Extended Life
Engine Coolant. Refer toAdding engine coolant,in theMaintenance
and Carechapter.
24.0L vehicles with conventional rear axles are filled with Motorcraft
SAE 80W90 Premium Rear Axle Lubricant, part number XY-80W90±QL,
Ford specification WSP-M2C197±A.
4.0L vehicles with limited slip differentials and all 5.0L applications use
rear axles that are filled with Motorcraft SAE 75W140 High Performance
Synthetic Rear Axle Lubricant, part number F1TZ-19580±B, Ford
specification WSL-M2C192±A.
4.0L vehicles with limited slip differentials and all 5.0L applications must
add 118 ml (4 oz) of additive friction modifier C8AZ-19B546±A, Ford
specification EST-M2C118±A to the rear axle whenever the axle has been
serviced.
ENGINE DATA
Engine 4.0L SOHC V6 engine 5.0L V8 engine
Cubic inches 245 302
Horsepower 210 @ 5250 rpm 215 @ 4200 rpm
Torque 240 lb.-ft. @ 3250 rpm 288 lbs.ft. @ 3300
rpm
Recommended fuel 87 octane 87 octane
Firing order 1-4-2-5-3-6 1-3-7-2-6-5-4-8
Spark plug gap 1.3-1.4 mm
(0.052-0.056 inch)1.3-1.4 mm
(0.052-0.056 inch)
Ignition system EDIS EDIS
Compression ratio 9.7:1 9.15:1
Capacities and specifications
237

economy button ........................17
english/metric button ...............16
reset button ..............................17
system check button ...........17,18
Mirrors
automatic dimming rearview
mirror ........................................98
cleaning ...................................232
heated ......................................101
side view mirrors (power) .....101
Moon roof ....................................89
Motorcraft parts ........................217
Octane rating ............................215
Odometer .....................................13
Panic alarm feature, remote
entry system ..............................106
Parking brake ............................144
Power distribution box (see
Fuses) ........................................175
Power door locks ......................100
Power steering
fluid, checking and adding ....201
Radio ...34,35,36,37,38,39,40,41,42,
43,44,45,46,47,48,49,50,51,52,53,
54,55,57,58,59,60,61,62,63,64,65,
66,67,68,69
Relays ........................................170
Remote entry system .......105,113,
114,115
illuminated entry ....................109
locking/unlocking doors .........106
replacement/additional
transmitters .............................109
replacing the batteries ...........108
Reverse sensing system .............32
Roof rack ...................................167
Safety belts
(see Safety restraints) ...............11
Safety restraints
cleaning the safety belts .125,231
extension assembly ................124
for children .............................132warning light and chime ...11,124
Seat belts (see Safety
restraints) ......119,120,121,122,123
Seats ..........................................116
child safety seats ....................133
cleaning ............................230,231
memory seat ...........................107
Servicing your vehicle ..............191
Snowplowing .................................3
Spark plugs, specifications .......233
Special notice ................................3
ambulance conversions ..............3
utility-type vehicles ....................3
Specification chart, lubricants .235
Speed control ..............................81
Speedometer ...............................12
Starting your vehicle .........139,141
jump starting ............183,184,186
Steering wheel ............................86
tilting .........................................85
Tachometer .................................13
Tires ....................................209,210
changing ...........................178,179
checking the pressure ............210
replacing ..................................211
rotating ....................................210
snow tires and chains ............212
tire grades ...............................210
treadwear ................................209
Towing ..................163,165,166,167
recreational towing .................167
wrecker ....................................189
Traction-lok rear axle ...............160
Transfer case
fluid checking .........................205
Transmission ......................146,203
automatic operation ...............146
fluid, checking and adding
(automatic) ......................203,204
Trip odometer .............................13
Index
244

Item Information
Recommended fuel Unleaded fuel only - 87 octane
Fuel tank capacity 78.7L (20.8 gallons)
Engine oil capacity (includes filter
change)4.7L (5.0 quarts). Use Motorcraft
5W30 Super Premium Motor Oil,
Ford specification WSS-M2C153-G.
Tire size and pressure See Safety Compliance
Certification Label on inside of
driver door.
Hood release Pull handle under the instrument
panel.
Coolant capacity-(4.0L SOHC V6
engine)
113.2L (14.0 quarts)
Coolant capacity (5.0L V8 engine)
114.9L (15.7 quarts)
Power steering fluid capacity Fill to line on reservoir. Use
Motorcraft MERCONtAT F.
Automatic transmission fluid
capacity (4R70W with 5.0L V8
engine AWD)
2
13.1L (13.9 quarts). Use
Motorcraft MERCONtV ATF.
Automatic transmission fluid
capacity (4x2 vehicles with 5R55E
and 4.0L SOHC V6 engine)
2
9.5L (10.0 quarts). Use Motorcraft
MERCONtV ATF.
Automatic transmission fluid
capacity (4x4 vehicles with 5R55E
and 4.0L SOHC V6 engine)
2
9.8L (10.3 quarts). Use Motorcraft
MERCONtV ATF.
1If your engine coolant is green in color, use Ford Premium Cooling
System Fluid. If your engine coolant is orange in color, use Ford
Extended Life Engine Coolant. Refer toAdding engine coolant, in the
Maintenance and Care chapter.
2Ensure correct automatic transmission fluid is used for a specific
application. Check the container to verify the fluid is MERCONtand/or
MERCONtV approved. Some fluids have been approved as meeting both
MERCONtand MERCONtV requirements and will be labeled as such.
Fluids labeled as meeting only MERCONtor only MERCONtV
requirements must not be used interchangeably. DO NOT mix MERCONt
and MERCONtV. Transmission fluid requirements are indicated on the
dipstick or on the dipstick handle. Refer to your Scheduled Maintenance
Guide to determine the correct service interval.
Filling station information
248