octane LINCOLN LS 2003 Owners Manual

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.
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 compounds containing MMT.
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
“Premium”unleaded gasoline with
an (R+M)/2 octane rating of 91 or
higher for optimum performance.
The use of gasolines with lower
octane ratings may degrade performance. We do not recommend the use
of gasolines labeled as“Premium”in high altitude areas that are sold
with octane ratings of less than 91.
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“Premium”
unleaded gasoline. If the problems persist, see your dealer or a qualified
service technician.
91(R+M)/2 METHOD
Maintenance and Specifications
257

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
issued 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. In Canada,
look for fuels that display theAuto
Makers’Choice
logo.
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.
•Your“Check Engine”indicator may come on. For more information on
the“Check Engine”indicator, refer to theInstrument Cluster
chapter.
Fuel Filter
For fuel filter replacement, see your dealer or a qualified service
technician. Refer to the scheduled maintenance guide for the appropriate
intervals for changing the fuel filter.
Replace the fuel filter with an authorized Motorcraft part. The
customer warranty may be void for any damage to the fuel system
if an authorized Motorcraft fuel filter is not used.
Maintenance and Specifications
258

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 1,600 km (1,000 miles)
of driving (engine break-in period). You will get a more accurate
measurement after 3,000 km–5,000 km (2,000 miles-3,000 miles).
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 theRefill capacities
section 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 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).
Maintenance and Specifications
259

Item Ford part
nameFord part
numberFord
specification
Rear Axle
LubricantMotorcraft SAE
75W-90 Fuel
Efficient High
Performance
Synthetic Rear
Axle Lube
2
XY-75W90–
QFEHPES-3W4W-
19A508–AA
Automatic
transmission
fluidMotorcraft
MERCONV
AT F
3
XT-5-QM MERCONV
Windshield
washer fluidUltra-clear
Windshield
Washer
ConcentrateC9AZ-19550-AC ESR-M17P5-A
1Use only brake fluids certified to meet Ford specifications. DOT 3 fluid
is recommended. However, if DOT 3 is not available, DOT 4 fluid can be
used.
2Ford design rear axles contain a synthetic lubricant that does not
require changing unless the axle has been submerged in water.
3Ensure the correct automatic transmission fluid is used. MERCONand
MERCONV are not interchangeable. DO NOT MIX MERCONand
MERCONV. Refer to the scheduled maintenance guide to determine
the correct service interval.
ENGINE DATA
Engine 3.0L-4V V6 engine 3.9L-4V V8 engine
Displacement 2 968 cc (181 cid) 3 949 cc (241 cid)
Required fuel 91 octane 91 octane
Firing order 1-4-2-5-3-6 1-5-4-2-6-3-7-8
Spark plug gap 1.30-1.45 mm
(0.051-0.057 inch)0.99-1.09 mm
(0.039-0.043 inch)
Ignition system Coil on plug Coil on plug
Compression ratio 10.5:1 10.75:1
Maintenance and Specifications
275

F
Fail safe cooling ........................253
Floor mats .................................119
Fluid capacities .........................272
Foglamps .....................................78
Fuel ............................................254
calculating fuel economy ......108,
259
cap ...........................................256
capacity ...................................272
choosing the right fuel ...........257
comparisons with EPA
fuel economy estimates .........261
detergent in fuel .....................258
filling your vehicle
with fuel ..................254, 256, 259
filter, specifications ........258, 271
improving fuel economy ........259
octane rating ...........257, 275–276
quality ......................................257
running out of fuel .................258
safety information relating
to automotive fuels ................254
Fuses ..................................202–203
G
Garage door opener ..................102
Gas cap (see Fuel cap) ............256
Gas mileage (see Fuel
economy) ...................................259
Gauges .........................................14
GAWR (Gross Axle
Weight Rating) ..........................198
definition .................................198
driving with a heavy load ......198
location ....................................198GVWR (Gross Vehicle
Weight Rating) ..........................198
calculating ...............................198
definition .................................198
driving with a heavy load ......198
location ....................................198
H
Head restraints .................135, 140
Headlamps ...................................77
aiming ........................................80
autolamp system .......................77
bulb specifications ....................81
daytime running lights .............78
flash to pass ..............................79
replacing bulbs ...................82–83
turning on and off ....................77
Heating
heating and air conditioning
system .................................69, 71
HomeLink universal
transceiver (see Garage
door opener) .............102–103, 105
Hood ..........................................240
I
Ignition .......................181, 275–276
Infant seats
(see Safety seats) .....................172
Inspection/maintenance
(I/M) testing ..............................263
Instrument panel
cleaning ...................................236
cluster ........................................10
lighting up panel
and interior ...............................79
Index
283

J
Jack ............................................211
positioning ...............................211
storage .....................................211
Jump-starting your vehicle ......216
K
Keyless entry system ...............129
autolock ...................................128
Keys ...........................................120
positions of the ignition .........181
valet key ..................................120
L
Lamps
autolamp system .......................77
bulb replacement
specifications chart ..................81
cargo lamps ...............................79
daytime running light ...............78
fog lamps ...................................78
headlamps .................................77
headlamps, flash to pass ..........79
instrument panel, dimming .....79
interior lamps .....................81–82
replacing bulbs ...................81–85
Lane change indicator
(see Turn signal) ........................81
Lights, warning and indicator ....10
anti-lock brakes (ABS) ..........184
Load limits .................................198
GAWR ......................................198
GVWR ......................................198
trailer towing ..........................198
Locks
autolock ...................................128
childproof ................................122doors ........................................120
Lubricant specifications ...274–275
Lug nuts, anti-theft ...................215
Lumbar support, seats .............136
M
Message center .................106, 108
select button ...........................106
warning messages ...................110
Mirrors ...................................89, 92
automatic dimming
rearview mirror .........................92
fold away ...................................95
heated ........................................94
programmable memory ..........128
side view mirrors (power) .......94
Moon roof ..................................101
Motorcraft parts ................258, 271
N
Navigation system .......................24
cd functions ..............................35
destination mode ......................48
map mode .................................39
quick start .................................27
radio functions ..........................29
O
Octane rating ............................257
Oil (see Engine oil) ..................243
P
Parking brake ............................185
Parts (see Motorcraft parts) ....271
Index
284