1998 LINCOLN MARK VIII engine

Keep a record for at least one month. This will provide an accurate
estimate of the vehicle's fuel economy.
EMISSION CONTROL SYSTEM
Your vehicle is equipped with various emission control components and a
catalytic converter which will enable your vehicle to comply with
applicable exhaust emission standards. To make sure that the catalytic
converter and other emission control components continue to work
properly:
²Use only unleaded fuel.
²Avoid running out of fuel.
²Do not turn off the ignition while your vehicle is moving, especially at
high speeds.
²Have the services listed in your ªService Guideº performed according
to the specified schedule.
The Scheduled Maintenance Services listed in the ªService Guideº are
required because they are considered 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.
Watch for fluid leaks, strange odors, smoke, loss of oil pressure, the
charging system warning light, the ªCheck Engineº light or the
temperature warning light. These events could indicate that the emission
control system is not working properly.
If you smell exhaust fumes of any kind inside your vehicle, have
the dealer inspect and fix your vehicle immediately. Do not drive
if you smell exhaust fumes. These fumes are harmful and could kill
you.
Do not make any unauthorized changes to your vehicle or engine. By
law, vehicle owners and anyone who manufactures, repairs, services,
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144

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 your ªWarranty Guideº for complete emission warranty
information.
Readiness for inspection/maintenance (I/M) testing
In some localities, it may be a legal requirement to pass an I/M test of
the on-board diagnostic (OBD-II) system. If your ªcheck engine/service
engine soonº light is on, reference the applicable light description in the
Warning Lights and Chimessection of your owners guide. Your vehicle
may not pass the I/M test with the ªcheck engine/service engine soonº
light on.
If the vehicle's powertrain system or its battery has just been serviced,
the OBD-II system is reset to a ªnot ready for I/M testº condition. To
ready the OBD-II system for I/M testing, a minimum of 30 minutes of city
and highway driving is necessary as described below:
²First, at least 10 minutes of driving on an expressway or highway.
²Next, at least 20 minutes driving in stop and go, city type traffic with
at least four idle periods.
Allow the vehicle to sit for at least eight hours without starting the
engine. Then, start the engine and complete the above driving cycle. The
engine must warm up to its normal operating temperature. Once started,
do not turn off the engine until the above driving cycle is complete.
EXTERIOR BULBS
Replacing exterior bulbs
Check the operation of the following lamps frequently:
²Headlamps
²Tail lamps
²Brakelamps
²High-mount brakelamp
²Turn signals
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145

²Backup lamps
²License plate lamp
Do not remove lamp bulbs unless they will be replaced immediately. If a
bulb is removed for an extended period of time, contaminants may enter
the lamp housings and affect performance.
Replacing headlamp bulbs
The high beam headlamps on your vehicle use halogen bulbs. If the lamp
burns out, simply replace it with a new one.
Handle a halogen headlamp bulb carefully and keep out of
children's reach. Grasp the bulb only by its plastic base and do
not touch the glass. The oil from your hand could cause the bulb to
break the next time the headlamps are operated.
Unlike the high beam headlamps, the low beam headlamps on your
vehicle use a ªhigh intensity dischargeº source. These lamps operate at a
high voltage.
Low beam headlamps that flicker, are dim, or appear yellow or red
should be replaced using the following instructions provided the vehicle
is equipped with an orange sticker displayed near the front of the engine
compartment which reads WARNING: HIGH VOLTAGE.
Take your vehicle to your Lincoln Mercury dealer for service if:
²One or both of your low beam headlamp bulbs are burned out and the
orange sticker which reads WARNING: HIGH VOLTAGE is not
displayed near the front of the engine compartment or
²The message center displays ªCHECK HEADLAMPS.º
Replacing the low beam headlamp bulb
1. Make sure the headlamp switch is
in the OFF position.
2. Lift the hood and disconnect the
battery ground cable.
3. Remove the sight shield located
above the headlamps.
Maintenance and care
146

Cleaning the wheels
Wash with the same detergent as the body of your vehicle. Do not use
acid-based wheel cleaners, steel wool, fuel or strong detergents. Never
use abrasives that will damage the finish of special wheel surfaces. Use a
tar remover to remove grease and tar.
Cleaning the engine
Engines are more efficient when they are clean because grease and dirt
buildup keep the engine warmer than normal. When washing:
²Take care when using a power washer to clean the engine. The high
pressure fluid could penetrate the sealed parts and cause damage.
²Do not spray with cold water to avoid cracking the engine block or
other engine components.
²Cover the highlighted areas to prevent water damage when cleaning
the engine.
²Never wash or rinse the engine while it is running; water in the
running engine may cause internal damage.
Maintenance and care
157

MOTORCRAFT PART NUMBERS
Component 4.6L engine
Air filter FA-1602
Fuel filter FG-881
Battery (standard) BXT-65-650
Battery (optional) BXT-65-850
Oil filter FL-820S
PCV valve EV-111
Spark plugs* AWSF-32EE**
* Refer to Vehicle Emissions Control Information (VECI) decal for
spark plug gap information.
** If a spark plug is removed for inspection, it must be reinstalled in
the same cylinder. Cylinders No. 1, 2, 3 and 4 have a ªEGº suffix.
Cylinders No. 5, 6, 7 and 8 have a ªEº suffix. If a spark plug needs to
be replaced, use only spark plugs with the same service part number
suffix letter ªEEº as shown on the engine decal.
Capacities and specifications
161

REFILL CAPACITIES
Fluid Ford Part Name Capacity
Engine oil
(includes filter
change)Motorcraft 5W30 Super
Premium Motor Oil 5.7L (6.0 quarts)
Brake fluid Ford High Performance DOT
3 Brake FluidFill to line in
reservoir
Power steering
fluidMotorcraft MERCONtATF Fill to line in
reservoir
Transmission fluid Motorcraft MERCONtV ATF 12.0L (12.8 quarts)
Engine coolant Ford Premium Cooling
System Fluid15.1L (16.0 quarts)
Fuel tank N/A 68.1L (18.0
gallons)
Rear axle fluid
1Motorcraft SAE 80W90 Rear
Axle Lubricant1.4-1.5L (2.9-3.1
pints)
Windshield washer
fluidUltra-Clear Windshield
ConcentrateFill to line in
reservoir
1Service refill capacities are determined by filling the rear axle 6 mm
(1/4 inch) below the bottom of the filler hole.
Rear axles are considered lubricated for life when the vehicle is used for
normal service. See your ªService Guideº for Severe Duty requirements.
Capacities and specifications
162

LUBRICANT SPECIFICATIONS
Item Ford part name Ford part
numberFord
specification
Brake master
cylinderHigh Performance
DOT 3 Motor
Vehicle Brake FluidC6AZ-
19542-ABESA-M6C25-A,
DOT 3
Door
weatherstripsSilicone Lubricant C0AZ-19553-
AA and
D7AZ-
19553-AAESR-M13P4-A
Engine coolant Ford Premium
Cooling System
FluidE2FZ-
19549-AAESE-M97B44-A
Engine oil Motorcraft 5W-30
Super Premium
Motor OilXO-5W30-
QSPWSS-M2C153-G
with API
Certification
Mark
Hinges, latches
and striker
platesMulti-Purpose
GreaseDOAZ-
19584-AAESR-M1C159-A
and
ESB-M1C93-B
Lock cylinders Penetrating
LubricantE8AZ-
19A501-BN/A
Power steering
reservoirMotorcraft
MERCONtAT FXT-2-QDX MERCONt
Automatic
transmission
(4R70W)Motorcraft
MERCONtVATFXT-5-QM
MERCONtV
Windshield
washer fluid
reservoirUltra-Clear
Windshield Washer
ConcentrateC9AZ-19550-
AC or BCESR-M17P5-A
Rear axle Motorcraft Premium
Rear Axle LubricantXY-80W90-QL WSL-M2C197-A
Capacities and specifications
163

ENGINE DATA
Engine 4.6L DOHC engine
Cubic inches 281
Horsepower (except LSC) 280 @ 5750 rpm
Horsepower (LSC) 290 @ 5750 rpm
Torque (except LSC) 285 lb. ft. @ 4500 rpm
Torque (LSC) 290 lb. ft. @ 4500 rpm
Recommended fuel grade 91 octane
Firing order 1-3-7-2-6-5-4-8
Spark plug gap 1.3-1.4 mm (0.052-.056 inch)
Ignition system EDIS
Compression ratio 9.8:1
VEHICLE DIMENSIONS
Vehicle dimensions mm (in)
(1) Overall length 5 263 (207.2)
(2) Overall width 1 900 (74.8)
(3) Overall height 1 361 (53.6)
(4) Wheelbase 2 870 (113.0)
(5) Track - Front 1 565 (61.6)
(5) Track - Rear 1 530 (60.2)
Capacities and specifications
164