2001 FORD POSTAL EXPLORER maintenance

10. Air filter assembly
11. Engine coolant reservoir
ENGINE OIL
Checking the engine oil
Refer to the scheduled maintenance guide for the appropriate intervals
for checking the engine oil.
1. Make sure the vehicle is on level ground.
2. Turn the engine off and wait a few minutes for the oil to drain into the
oil pan.
3. Set the parking brake and ensure the gearshift is securely latched in P
(Park).
4. Open the hood. Protect yourself from engine heat.
5. Locate and carefully remove the engine oil level indicator (dipstick).
6. Wipe the indicator clean. Insert the indicator fully, then remove it
again.
²If the oil level isbetween the MIN and MAX marks,the oil level is
acceptable.DO NOT ADD OIL.
²If the oil level is below the MIN mark, add enough oil to raise the level
within the MIN-MAX range.
²Oil levels above the MAX mark may cause engine damage. Some oil
must be removed from the engine by a qualified service technician.
7. Put the indicator back in and ensure it is fully seated.
Adding engine oil
1. Check the engine oil. For instructions, refer toChecking the engine
oilin this chapter.
2. If the engine oil level is not within the normal range, add only certified
engine oil of the recommended viscosity. Remove the engine oil filler cap
and use a funnel to pour the engine oil into the opening.
3. Recheck the engine oil level. Make sure the oil level is not above the
FULL mark on the engine oil level indicator (dipstick).
4. Install the indicator and ensure it is fully seated.
5. Fully install the engine oil filler cap by turning the filler cap clockwise
until three clicks are heard or until it is latched.
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54

To avoid possible oil loss, DO NOT operate the vehicle with the
engine oil level indicator and/or the engine oil filler cap removed.
Engine oil and filter recommendations
SAE 5W-30 engine oil is recommended
Look for this certification
trademark.
Use SAE 5W-30 motor oil certified for gasoline engines by the American
Petroleum Institute (API).
Motor oil displaying the API certification trademark will meet all
requirements for your vehicle's engine.
Ford oil specification is WSS-M2C153-G.
Do not use supplemental engine oil additives, oil treatments or engine
treatments. They are unnecessary and could, under certain conditions,
lead to engine damage which is not covered by your warranty.
Change your engine oil and filter according to the appropriate schedule
listed in the scheduled maintenance guide.
Ford production and aftermarket (Motorcraft) oil filters are designed for
added engine protection and long life. If a replacement oil filter is used
that does not meet Ford material and design specifications, start-up
engine noises or knock may be experienced.
It is recommended you use the appropriate Motorcraft oil filter (or
another brand meeting Ford specifications) for your engine application.
Maintenance and care
55

BRAKE FLUID
Checking and adding brake fluid
Brake fluid should be checked and
refilled as needed. Refer to the
scheduled maintenance guide for
the service interval schedules.
1. Clean the reservoir cap before
removal to prevent dirt or water
from entering the reservoir.
2. Visually inspect the fluid level.
3. If necessary, add brake fluid from
a clean un-opened container until
the level reaches MAX. Do not fill
above this line.
4. Use only a DOT 3 brake fluid
certified to meet Ford specifications. Refer toLubricant specifications
in theCapacities and specificationschapter.
Brake fluid is toxic. If brake fluid contacts the eyes, flush eyes
with running water for 15 minutes. Seek medical attention if
irritation persists. If taken internally, drink water and induce vomiting.
Seek medical attention immediately.
If you use a brake fluid that is not DOT 3, you will cause
permanent damage to your brakes.
Do not let the reservoir for the master cylinder run dry. This
may cause the brakes to fail.
MAX
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56

WINDSHIELD WASHER FLUID
Checking and adding washer fluid
Check the washer fluid whenever
you stop for fuel. The reservoir is
highlighted with a
symbol.
If the level is low, add enough fluid
to fill the reservoir. In very cold
weather, do not fill the reservoir all
the way.
Only use a washer fluid that meets Ford specifications. Refer to
Lubricant specificationsin theCapacities and specificationschapter.
State or local regulations on volatile organic compounds may restrict the
use of methanol, a common windshield washer antifreeze additive.
Washer fluids containing non-methanol antifreeze agents should be used
only if they provide cold weather protection without damaging the
vehicle's paint finish, wiper blades or washer system.
Do not put washer fluid in the engine coolant reservoir. Washer
fluid placed in the cooling system may harm engine and cooling
system components.
ENGINE COOLANT
Checking engine coolant
Your engine's cooloing system has been factory-filled with a 50/50
mixture of distilled water and Ford G05 Engine Coolant per Ford
Specification WSS-M97B51±A1.
A50/50 mixtureof distilled water and Ford G05 Engine Coolant
provides:
²maximum cooling system efficiency.
RADIATOR
COOLANT
ONLY
WASHERFLUIDONLY
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57

²freeze protection down to -36É C (-34É F).
²boiling protection up to 129É C (265É F).
²protection against rust and other forms of corrosion.
²an accurate temperature readout from the engine coolant
gauge.
The engine coolant must be maintained at the correct fluid level
and concentration to work properly. If the engine coolant fluid
level and concentration is not maintained correctly, damage to
the engine and cooling system may result.
When the engine is cold, check the
level of the engine coolant in the
reservoir.
²The engine coolant should be at the ªcold fill levelº or within the ªcold
fill rangeº as listed on the engine coolant reservoir (depending upon
application).
²Refer to the scheduled maintenance guide for service interval
schedules.
²Be sure to read and understandPrecautions when servicing your
vehiclein this chapter.
If the engine coolant has not been checked at the recommended interval,
the engine coolant reservoir may become low or empty. If the reservoir is
low or empty, add engine coolant to the reservoir. Refer toAdding
engine coolantin this chapter.
RADIATOR
COOLANT
ONLY
WASHERFLUIDONLY
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58

Automotive fluids are not interchangeable; do not use engine
coolant, antifreeze or windshield washer fluid outside of its
specified function and vehicle location.
Adding engine coolant
Use only Ford Premium Engine Coolant E2FZ-19549-AA (in
Canada, Motorcraft CXC-10) or a premium engine coolant that
meets Ford specification ESE-M97B44-A. Use only Ford G05
Engine Coolant WSSÐM97B51±A1 (in Canada, Motorcraft
CXC-10) or a premium engine coolant that meets Ford
specification ESE-M97B44-A.
²DO NOT USE Ford Extended Life Engine Coolant
F6AZ-19544-AA (orange in color).
²DO NOT USE a DEX-COOLtengine coolant or an equivalent
engine coolant that meets Ford specification WSS-M97B44-D.
²DO NOT USE alcohol or methanol antifreeze or any engine
coolants mixed with alcohol or methanol antifreeze.
²DO NOT USE supplemental coolant additives in your vehicle.
These additives may harm your engine's cooling system.
²DO NOT MIX recycled coolant and conventional coolant
together in your vehicle. Mixing of engine coolants may harm
your engine's cooling system.
²The use of an improper coolant may harm engine and cooling
system components and may void the warranty of your vehicle's
engine cooling system. If you are unsure which type of coolant
your vehicle requires, contact your local dealer.
Do not put engine coolant in the windshield washer fluid
reservoir. If engine coolant is sprayed onto the windshield, it
could make it difficult to see through the windshield.
When the engine is cool, add a50/50 mixtureof engine coolant and
distilled water to the engine coolant reservoir, until the coolant is at the
ªcold fill levelº or within the ªcold fill rangeº as listed in the engine
coolant reservoir (depending upon application).
²NEVER increase the coolant concentration above 60%.
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59

²NEVER decrease the coolant concentration below 40%.
²Engine coolant concentrations above 60% or below 40% will
decrease the freeze protection characteristics of the engine
coolant and may cause engine damage.
Plain water may be added in an emergency, but youmustreplace it with
a 50/50 mixture of engine coolant and distilled water as soon as possible.
Check the coolant level in the reservoir before you drive your vehicle the
next few times (with the engine cool). If necessary, add a50/50
mixtureof engine coolant and distilled water to the engine coolant
reservoir until the coolant level is at the ªcold fill levelº or within the
ªcold fill rangeº as listed on the reservoir (depending upon application).
Have your dealer check the engine cooling system for leaks if you have
to add more than 1.0 liter (1.0 quart) of engine coolant per month.
To avoid scalding hot steam or coolant from being released from
the engine cooling system, never remove the reservoir cap while
the engine is running or hot. Failure to follow this warning may result
in damage to the engine's cooling system and possible severe personal
injury.
If you must remove the coolant cap, follow these steps to avoid personal
injury:
1. Before you remove the cap, turn the engine off and let it cool.
2. When the engine is cool, wrap a thick cloth around the cap. Slowly
turn cap counterclockwise until pressure begins to release.
3. Step back while the pressure releases.
4. When you are sure that all the pressure has been released, use the
cloth to turn it counterclockwise and remove the cap.
Recycled engine coolant
Ford Motor Company recommends the use of a recycled engine coolant
produced by Ford-approved processes.
Not all coolant recycling processes produce coolant which meets Ford
specification WSS-M97B51±A1. Use of a recycled engine coolant which
does not meet the Ford G05 specification may harm engine and cooling
system components.
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60

Always dispose of used automotive fluids in a responsible manner.
Follow your community's regulations and standards for recycling and
disposing of automotive fluids.
Coolant refill capacity
To find out how much fluid your vehicle's cooling system can hold, refer
toRefill capacitiesin theCapacities and specificationschapter.
Fill your engine coolant reservoir as outlined inAdding engine coolant
in this chapter.
Severe climates
If you drive in extremely cold climates (less than ±36É C [±34É F]):
²it may be necessary to increase the coolant concentration
above 50%.
²NEVER increase the coolant concentration above 60%.
²increased engine coolant concentrations above 60% will
decrease the overheat protection characteristics of the engine
coolant and may cause engine damage.
²refer to the chart on the coolant container to ensure the
coolant concentration in your vehicle will provide adequate
freeze protection at the temperatures in which you drive in the
winter months.
If you drive in extremely hot climates:
²it is still necessary to maintain the coolant concentration
above 40%.
²NEVER decrease the coolant concentration below 40%.
²decreased engine coolant concentrations below 40% will
decrease the corrosion protection characteristics of the engine
coolant and may cause engine damage.
²decreased engine coolant concentrations below 40% will
decrease the freeze protection characteristics of the engine
coolant and may cause engine damage.
²refer to the chart on the coolant container to ensure the
coolant concentration in your vehicle will provide adequate
protection at the temperatures in which you drive.
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61