
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 authorized dealer.
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
effect 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.
•The
indicator may come on. For more information on the “Check
Engine” or the “Service engine soon” indicator, refer toWarning
lights and chimesin theInstrument Clusterchapter.
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 1,000 miles (1,600
km) of driving (engine break-in period). You will get a more accurate
measurement after 2,000 miles-3,000 miles (3,000 km–5,000 km).
2006 Lincoln LS(dew)
Owners Guide (post-2002-fmt)
USA(fus)
Maintenance and Specifications
294

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 two 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 miles or kilometers).
2. Each time you fill the tank, record the amount of fuel added (in
gallons or liters).
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:
2006 Lincoln LS(dew)
Owners Guide (post-2002-fmt)
USA(fus)
Maintenance and Specifications
295

•Use only the specified fuel listed.
•Avoid running out of fuel.
•Do not turn off the ignition while your vehicle is moving, especially at
high speeds.
•Have the items listed inscheduled maintenance information
performed according to the specified schedule.
The scheduled maintenance items listed inscheduled maintenance
informationare essential to the life and performance of your vehicle
and to its emissions system.
If other than Ford, Motorcraft or Ford-authorized parts are used for
maintenance replacements or for service of components affecting
emission control, such non-Ford parts should be equivalent to genuine
Ford Motor Company parts in performance and durability.
Do not park, idle, or drive your vehicle in dry grass or other dry
ground cover. The emission system heats up the engine
compartment and exhaust system, which can start a fire.
Illumination of the
indicator, charging system warning light or the
temperature warning light, fluid leaks, strange odors, smoke or loss of
engine power could indicate that the emission control system is not
working properly.
Exhaust leaks may result in entry of harmful and potentially
lethal fumes into the passenger compartment.
Do not make any unauthorized changes to your vehicle or engine. By
law, vehicle owners and anyone who manufactures, repairs, services,
sells, leases, trades vehicles, or supervises a fleet of vehicles are not
permitted to intentionally remove an emission control device or prevent
it from working. Information about your vehicle’s emission system is on
the Vehicle Emission Control Information Decal located on or near the
engine. This decal identifies engine displacement and gives some tune up
specifications.
Please consult yourWarranty Guidefor complete emission warranty
information.
On board diagnostics (OBD-II)
Your vehicle is equipped with a computer that monitors the engine’s
emission control system. This system is commonly known as the On
2006 Lincoln LS(dew)
Owners Guide (post-2002-fmt)
USA(fus)
Maintenance and Specifications
298

Item Ford part
nameFord part
numberFord
specification
Rear Axle
LubricantMotorcraft SAE
75W-140 High
Performance
Rear Axle
Lubricant
2
XY-75W140-QL WSL-M2C192–A
Automatic
transmission
fluidMotorcraft
MERCONV
AT F
3
XT-5-QM MERCONV
Windshield
washer fluidPremium
Windshield
Washer
ConcentrateZC-32-A WSB-M8B16–A2
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 thescheduled maintenance informationto
determine the correct service interval.
ENGINE DATA
Engine 3.9L-4V V8 engine
Displacement 241 cid (3 949 cc)
Required fuel 91 octane
Firing order 1-5-4-2-6-3-7-8
Ignition system Coil on plug
Spark plug gap 0.040–0.044 inch (1.0–1.1mm)
Compression ratio 10.75:1
2006 Lincoln LS(dew)
Owners Guide (post-2002-fmt)
USA(fus)
Maintenance and Specifications
307

Floor mats .................................138
Fluid capacities .........................304
Foglamps .....................................98
Fuel ............................................290
calculating fuel
economy ..........................128, 294
cap ...........................................292
capacity ...................................304
choosing the right fuel ...........293
comparisons with EPA fuel
economy estimates .................297
detergent in fuel .....................294
filling your vehicle with
fuel ...........................290, 292, 295
filter, specifications ........290, 303
fuel pump shut-off switch .....239
improving fuel economy ........294
octane rating ...........293, 307–308
quality ......................................294
running out of fuel .................294
safety information relating to
automotive fuels .....................290
Fuel pump shut-off switch .......239
Fuses ..................................240–241
G
Garage Door Opener
(see Homelink wireless control
system) ......................................121
Gas cap (see Fuel cap) ............292
Gas mileage
(see Fuel economy) .................294
Gauges .........................................14
GAWR
(Gross Axle Weight Rating)
calculating ...............................217GVWR
(Gross Vehicle Weight Rating)
calculating ...............................217
H
Hazard flashers .........................239
Head restraints .................155, 160
Headlamps ...................................96
aiming ........................................98
autolamp system .......................96
bulb specifications ..................101
daytime running lights .............97
flash to pass ..............................97
replacing bulbs .......................102
turning on and off ....................96
Heating
heating and air conditioning
system .................................88, 90
Homelink wireless control
system ........................................121
Hood ..........................................276
I
Ignition .......................219, 307–308
Infant seats
(see Safety seats) .....................190
Inspection/maintenance (I/M)
testing ........................................299
Instrument panel
cleaning ...................................272
cluster ........................................10
lighting up panel and
interior .......................................98
J
Jack ............................................249
positioning ...............................249
2006 Lincoln LS(dew)
Owners Guide (post-2002-fmt)
USA(fus)
Index
316

storage .....................................249
Jump-starting your vehicle ......255
K
Keyless entry system ...............149
autolock ...................................148
Keys ...........................................139
positions of the ignition .........219
valet key ..................................139
L
Lamps
autolamp system .......................96
bulb replacement
specifications chart ................101
daytime running light ...............97
fog lamps ...................................98
headlamps .................................96
headlamps, flash to pass ..........97
instrument panel, dimming .....98
interior lamps .................100–102
replacing bulbs ...............100–103
Lane change indicator
(see Turn signal) ......................100
Lights, warning and indicator ....10
anti-lock brakes (ABS) ..........223
Load limits .................................212
Locks
autolock ...................................148
childproof ................................141
doors ........................................139
Lubricant specifications ...306–307
Lug nuts ....................................254
Lumbar support, seats .............156
M
Message center .................126–127select button ...........................126
warning messages ...................130
Mirrors .......................................106
automatic dimming rearview
mirror ......................................110
fold away .................................113
heated ......................................113
programmable memory ..........148
side view mirrors (power) .....113
Moon roof ..................................120
Motorcraft parts ........273, 290, 303
N
Navigation system .......................25
cd functions ..............................43
destination mode ......................67
DVD location .............................87
map mode .................................47
quick start .................................28
radio functions ..........................35
O
Octane rating ............................293
Oil (see Engine oil) ..................279
P
Parking brake ............................223
Parts (see Motorcraft parts) ....303
Pedals (see Power adjustable
foot pedals) ...............................114
Power adjustable foot pedals ...114
Power distribution box
(see Fuses) .......................244, 247
Power door locks ......................139
Power mirrors ...........................113
Power steering ..........................228
2006 Lincoln LS(dew)
Owners Guide (post-2002-fmt)
USA(fus)
Index
317