2003 LINCOLN LS fuel cap

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

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

REFILL CAPACITIES
Fluid Ford Part
NameApplication Capacity
Brake fluid Motorcraft High
Performance
DOT 3 Motor
Vehicle Brake
Fluid
1
All Fill to MAX line
on reservoir
Engine oil
(includes filter
change)Motorcraft SAE
5W-20 Premium
Synthetic Blend
Motor Oil3.0L-4V
V6 engine6.5L
(6.9 quarts)
Motorcraft SAE
5W-20 Premium
Synthetic Blend
Motor Oil3.9L-4V
V8 engine6.2L
(6.5 quarts)
Engine coolant
2Motorcraft
Premium Engine
Coolant
(green-colored)
orMotorcraft
Premium Gold
Engine Coolant
(yellow-colored)3.0L-4V
V6 engine10.6L
(11.2 quarts)
3.9L-4V
V8 engine11.3L
(11.9 quarts)
Power steering
fluidMotorcraft
MERCONAT FAll Fill to MAX line
on reservoir
Rear axle
3Motorcraft SAE
75W-90 Fuel
Efficient High
Performance
Synthetic Rear
Axle LubricantAll 1.2-1.3L
(2.5-2.7 pints)
Fuel tank N/A All 68.2L
(18.0 gallons)
Maintenance and Specifications
272

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