2005 FORD THUNDERBIRD engine oil

It is recommended you use the appropriate Motorcraft oil filter (or
another brand meeting Ford specifications) for your engine application.
BATTERY
Your vehicle is equipped with a
Motorcraft maintenance-free battery
which is located in the luggage
compartment, next to the spare tire.
Your battery is designed to purge any battery gases to the outside of the
vehicle by means of a vent hose. This vent hose MUST be attached at all
times. Replacement batteries must be of the same vented design.
If your battery has a cover/shield, make sure it is reinstalled
after the battery has been cleaned or replaced.
Your battery normally does not require additional water during its life of
service. For longer, trouble-free operation, keep the top of the battery
clean and dry. Make certain that the vent hose is attached. Also, make
certain the battery cables are always tightly fastened to the battery
terminals.
If you see any corrosion on the battery or terminals, remove the cables
from the terminals and clean with a wire brush. You can neutralize the
acid with a solution of baking soda and water.
Note: Electrical or electronic accessories or components added to
the vehicle by the dealer or the owner may adversely affect
battery performance and durability.
Batteries normally produce explosive gases which can cause
personal injury. Therefore, do not allow flames, sparks or lighted
substances to come near the battery. When working near the battery,
always shield your face and protect your eyes. Always provide proper
ventilation.
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If the battery has been disconnected or a new battery has been installed,
the short drop glass, clock and the preset radio stations must be reset
once the battery is reconnected.
•Always dispose of automotive
batteries in a responsible manner.
Follow your local authorized
standards for disposal. Call your
local authorized recycling center
to find out more about recycling
automotive batteries.
ENGINE COOLANT
Checking engine coolant
The concentration and level of engine coolant should be checked at the
mileage intervals listed in theScheduled Maintenance Guide. The
coolant concentration should be maintained at 50/50 coolant and distilled
water, which equates to a freeze point of -34°F (-36°C). Coolant
concentration testing is possible with a hydrometer or antifreeze tester
(such as the Rotunda Battery and Antifreeze Tester, 014–R1060). The
level of coolant should be maintained at the“FULL COLD”level or
within the“COLD FILL RANGE”in the coolant reservoir. If the level falls
below, add coolant per the instructions in theAdding engine coolant
section.
Your vehicle was factory-filled with a 50/50 engine coolant and water
concentration. If the concentration of coolant falls below 40% or above
60%, the engine parts could become damaged or not work properly.A
50–50 mixture of coolant and water provides the following:
•Freeze protection down to -34°F (-36°C).
•Boiling protection up to 265°F (129°C).
•Protection against rust and other forms of corrosion.
•Enables calibrated gauges to work properly.
LEAD
RETURN
RECYCLE
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Maintenance
•Keep tires properly inflated and use only recommended size.
•Operating a vehicle with the wheels out of alignment will reduce fuel
economy.
•Use recommended engine oil. Refer toLubricant specificationsin
this chapter.
•Perform all regularly scheduled maintenance items. Follow the
recommended maintenance schedule and owner maintenance checks
found in your vehicle scheduled maintenance guide.
Conditions
•Heavily loading a vehicle or towing a trailer may reduce fuel economy
at any speed.
•Carrying unnecessary weight may reduce fuel economy (approximately
1 mpg [0.4 km/L] is lost for every 400 lb [180 kg] of weight carried).
•Adding certain accessories to your vehicle (for example bug
deflectors, rollbars/light bars, running boards, ski/luggage racks) may
reduce fuel economy.
•Using fuel blended with alcohol may lower fuel economy.
•Fuel economy may decrease with lower temperatures during the first
8–10 miles (12–16 km) of driving.
•Driving on flat terrain offers improved fuel economy as compared to
driving on hilly terrain.
•Transmissions give their best fuel economy when operated in the top
cruise gear and with steady pressure on the gas pedal.
•Four-wheel-drive operation (if equipped) is less fuel efficient than
two-wheel-drive operation.
•Close windows for high speed driving.
EPA window sticker
Every new vehicle should have the EPA window sticker. Contact your
dealer if the window sticker is not supplied with your vehicle. The EPA
window sticker should be your guide for the fuel economy comparisons
with other vehicles.
It is important to note the box in the lower left corner of the window
sticker. These numbers represent the Range of MPG (L/100 km)
expected on the vehicle under optimum conditions. Your fuel economy
may vary depending upon the method of operation and conditions.
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5. Install a new air filter element. Be careful not to crimp the filter
element edges between the air filter housing and cover. This could cause
filter damage and allow unmetered air to enter the engine if not properly
seated.
6. Replace the air filter housing
cover and secure the clamps. Be
sure all of the tabs on front edge are
correctly aligned as shown.
Note:If you encounter any difficulty in replacing your air filter element,
have your vehicle serviced at your local dealer.
MOTORCRAFT PART NUMBERS
Component 3.9L-4V V8 engine
Air filter element FA-1679
Fuel filter FG-1011
Battery BXT-66-650
Oil filter FL-218
PCV valve
1
Spark plugs2
1
The PCV valve is a critical emission component. It is one of the items
listed in theScheduled Maintenance Guideand is essential to the life
and performance of your vehicle and to its emissions system.
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For PCV valve replacement, see your dealer or a qualified service
technician. Refer to theScheduled Maintenance Guidefor the
appropriate intervals for changing the PCV valve.
Replace the PCV valve with one that meets Ford material and
design specifications for your vehicle, such as a Motorcraft or
equivalent replacement part. The customer warranty may be void
for any damage to the emissions system if such a PCV valve is not
used.
2For spark plug replacement, see your dealer or a qualified service
technician. Refer to theScheduled Maintenance Guidefor the
appropriate intervals for changing the spark plugs.
Replace the spark plugs with ones that meet Ford material and
design specifications for your vehicle, such as Motorcraft or
equivalent replacement parts. The customer warranty may be
void for any damage to the engine if such spark plugs are not
used.
REFILL CAPACITIES
Fluid Ford Part Name Application 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)
6
Motorcraft SAE
5W-20 Premium
Synthetic Blend
Motor Oil (US)
Motorcraft SAE
5W-20 Super
Premium Motor
Oil (Canada)3.9L-4V V8
engine6.5 quarts
(6.2L)
Engine coolant
2Motorcraft
Premium Gold
Engine Coolant
(yellow-colored)3.9L-4V V8
engine11.9 quarts
(11.3L)
Power steering
fluidMotorcraft
MERCONAT FAll Fill to MAX line
on reservoir
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Fluid Ford Part Name Application Capacity
Rear axle3Motorcraft SAE
75W-90 Fuel
Efficient High
Performance
Synthetic Rear
Axle LubricantAll 2.5–2.7 pints
(1.2–1.3L)
Fuel tank N/A All 18.5 gallons
(70.0L)
Transmission
fluid
4Motorcraft
MERCONVATFAutomatic
(5R55S)11.9 quarts
(11.2L)5
Windshield
washer fluidMotorcraft
Premium
Windshield Washer
ConcentrateAll Fill to line on
reservoir
1Use only brake fluids certified to meet Ford specifications. Refer to
Lubricant Specificationsin this chapter. DOT 3 fluid is recommended.
However, if DOT 3 is not available, DOT 4 fluid can be used.
2Add the coolant type originally equipped in your vehicle.
3Your vehicle’s rear axle is filled with a synthetic rear axle lubricant and
is considered lubricated for life. These lubricants do not need to be
checked or changed unless a leak is suspected, service is required or the
axle assembly has been submerged in water. The axle lubricant should
be changed any time the rear axle has been submerged in water. Fill 1/4
inch to 9/16 inch (6 mm to 14 mm) below bottom of fill hole.
4Ensure the correct automatic transmission fluid is used. MERCONand
MERCONV are not interchangeable. DO NOT MIX MERCONand
MERCONV. Refer to theScheduled Maintenance Guideto determine
the correct service interval.
5Approximate dry capacity, includes cooler and tubes. Fluid level should
be checked by a qualified service technician.
6Use of synthetic or synthetic blend motor oil is not mandatory. Engine
oil need only meet the requirements of Ford specification
WSS-M2C930-A and the API Certification mark.
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LUBRICANT SPECIFICATIONS
Item Ford part
nameFord part
numberFord
specification
Brake fluid Motorcraft High
Performance
DOT 3 Motor
Vehicle Brake
Fluid
1
PM-1 ESA-M6C25-A
and DOT 3
Door
weatherstripsSilicone
LubricantXL-6 ESR-M13P4-A
Door latch,
hood latch,
auxiliary hood
latch, door
hinges, striker
plates, seat
tracks and fuel
filler door hingeMulti-Purpose
GreaseXL-4 or XL-5 ESB-M1C93-B
or
ESR-M1C159-A
Engine coolant Motorcraft
Premium Gold
Engine Coolant
(yellow-colored)VC-7-A (U.S.,
except CA and
OR), VC-7-B (CA
and OR only)WSS-M97B51-A1
Engine oil Motorcraft SAE
5W-20 Premium
Synthetic Blend
Motor Oil (US)
Motorcraft SAE
5W-20 Super
Premium Motor
Oil (Canada)XO-5W20-QSP
(US)
CXO-5W20–LSP12
(Canada)WSS-M2C930-A
with API
Certification
Mark
Lock cylinders Motorcraft
Penetrating and
Lock LubricantXL-1 none
Power steering
fluidMotorcraft
MERCONAT FXT-2-QDX MERCON
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Item Ford part
nameFord part
numberFord
specification
Rear Axle
LubricantMotorcraft SAE
75W-90 Fuel
Efficient High
Performance
Synthetic Rear
Axle Lubricant
2
XY-75W90-QFEHP
Automatic
transmission
fluidMotorcraft
MERCONV
AT F
3
XT-5-QM MERCONV
Windshield
washer fluidMotorcraft
Premium
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 Guideto 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 (1.1–1.2mm)
Compression ratio 10.75:1
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