2020 FORD F450 SUPER DUTY coolant reservoir

It is very important to use prediluted
coolant approved to the correct
specification to avoid plugging the small
passageways in the engine cooling system.
See Capacities and Specifications
(page 450). Do not mix different colors or
types of coolant in your vehicle. Mixing of
engine coolants or using an incorrect
coolant may harm the engine or cooling
system components and may not be
covered by the vehicle Warranty.
Note: Coolants marketed for all makes and
models may not be approved to our
specifications and may cause damage to
the cooling system. Resulting component
damage may not be covered by the vehicle
Warranty.
If the coolant level is at or below the
minimum mark, immediately add
prediluted coolant.
For vehicles with overflow coolant systems
with a non-pressurized cap on the coolant
recovery system, add coolant to the
coolant recovery reservoir when the engine
is cool. Add prediluted coolant to the
maximum level. For all vehicles which have
a coolant degas system with a pressurized
cap, or if it is necessary to remove the
coolant pressure relief cap on the radiator,
follow these steps to add engine coolant:
1. Turn the engine off and let it cool.
2. Slowly unscrew the cap. Any pressure escapes as you unscrew the cap.
3. Slowly fill the coolant reservoir with prediluted engine coolant to within the
minimum and maximum range on the
engine coolant reservoir. If you
removed the radiator cap in an
overflow system, fill the radiator until
the coolant is visible and the radiator
is almost full. If you add coolant to
bring the level within the minimum and
maximum range when the engine is not
cold, the system may remain under
filled. 4.
Replace the coolant reservoir cap. Turn
the cap clockwise until it contacts the
hard stop.
5. Check the coolant level in the coolant reservoir the next few times you drive
your vehicle. If necessary, add enough
prediluted engine coolant to bring the
coolant level to the proper level.
Note: If prediluted coolant is not available,
use the approved antifreeze concentrate
diluting it to 50/50 with distilled water. See
Capacities and Specifications (page 450).
Using water that has not been deionized
may contribute to deposit formation,
corrosion or plugging of the small cooling
system passageways.
If you have to add more than
1.1 qt (1 L) of
engine coolant per month, have your
vehicle checked as soon as possible.
Operating an engine with a low level of
coolant can result in engine overheating
and possible engine damage.
In case of emergency, you can add a large
amount of water without prediluted
coolant in order to reach a vehicle service
location. On arrival do the following:
1. Drain the cooling system.
2. Chemically clean the cooling system. We recommend Motorcraft Premium
Cooling System Flush.
3. Refill with prediluted coolant as soon as possible.
Water alone, without prediluted coolant,
can cause engine damage from corrosion,
overheating or freezing.
Do not use the following as a coolant
substitute:
• Alcohol.
• Methanol.
• Brine.
• Any coolant mixed with alcohol or
methanol antifreeze.
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Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 201909, Second-Printing Maintenance

Alcohol and other liquids can cause engine
damage from overheating or freezing.
Do not add extra inhibitors or non-specified
additives to the coolant. These can be
harmful and compromise the corrosion
protection of the coolant.
Engine and Secondary Cooling
System Refill Procedure
Perform this procedure when refilling the
engine or secondary cooling systems after
it has been drained or become extremely
low:
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 when the pressure releases.
4. When you are sure that all the pressure
has been released, use the cloth to turn
the cap counterclockwise and then
remove it.
5. Slowly add prediluted engine coolant to the coolant reservoir until the
coolant level is within the minimum
and maximum range as listed on the
reservoir.
6. Reinstall the pressure relief cap.
7. Start and run the engine at 2000 rpm for 2 minutes.
8. Shut the engine off, and remove the pressure relief cap as previously
outlined.
9. If required, add prediluted engine coolant to the coolant reservoir until
the coolant level is within the minimum
and maximum range as listed on the
reservoir. 10.
Engine cooling system: Repeat steps
5 through 9 until the coolant level has
stabilized and is no longer dropping
after each step and the upper
radiator hose at the radiator is warm
to the touch, indicating that the
engine thermostat is open and
coolant is flowing through the
radiator.
11. Check the secondary cooling system.
Repeat steps 1 through 10 until the
coolant level has stabilized and is no
longer dropping after each step and
the lower passenger side of the
secondary radiator is warm to the
touch, indicating secondary
thermostat is open and coolant is
flowing through the entire system.
12. Check the coolant level in both systems before you drive your vehicle
the next few times.
13. If necessary, add prediluted engine coolant to the coolant reservoirs until
the coolant level is within the
minimum and maximum range as
listed on the reservoir. After you add
coolant, check the coolant
concentration.
Recycled Coolant
We do not recommend the use of recycled
coolant as an approved recycling process
is not yet available.
Dispose of used engine coolant in an
appropriate manner. Follow your
community ’s regulations and standards
for recycling and disposing of automotive
fluids.
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Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 201909, Second-Printing Maintenance

Severe Climates
If you drive in extremely cold climates:
•
It may be necessary to increase the
coolant concentration above 50%.
• A coolant concentration of 60%
provides improved freeze point
protection. Coolant concentrations
above 60% decrease the overheat
protection characteristics of the
coolant and may cause engine
damage.
If you drive in extremely hot climates:
• You can decrease the coolant
concentration to 40%.
• Coolant concentrations below 40%
decrease the freeze and corrosion
protection characteristics of the
coolant and may cause engine
damage.
Vehicles driven year-round in non-extreme
climates should use prediluted engine
coolant for optimum cooling system and
engine protection.
Coolant Change
Follow the specific mileage intervals, as
listed in the scheduled maintenance
information, to change the coolant. The
information display may display a message
to change coolant at this time. Add
prediluted coolant approved to the correct
specification. See Capacities and
Specifications (page 433). Engine-driven Cooling Fan
Your vehicle may have an engine driven
cooling fan drive also called a fan clutch.
This fan drive changes the fan speed to
match the vehicle
’s changing cooling air
flow requirements. Fan speed, fan noise
level and fuel consumption all will increase
based on the driving conditions that
include trailer towing, hill climbing, heavy
loads, high speed and high ambient
temperature, individually or in combination.
The fan drive is designed to provide the
minimum fan speed and resulting
minimum fan noise and fuel consumption
required to meet the ever-changing vehicle
cooling air flow requirements. You can hear
the amount of fan noise increasing and
decreasing as the engine power
requirements and vehicle driving conditions
change as you drive. This is normal to the
operation of your vehicle. You may also
hear high levels of the fan when the engine
is first started and should normally
decrease after driving for a short time.
ENGINE COOLANT CHECK -
7.3L WARNING:
Do not remove the
coolant reservoir cap when the engine is
on or the cooling system is hot. Wait 10
minutes for the cooling system to cool
down. Cover the coolant reservoir cap
with a thick cloth to prevent the
possibility of scalding and slowly remove
the cap. Failure to follow this instruction
could result in personal injury. WARNING:
Do not put coolant in
the windshield washer reservoir. If
sprayed on the windshield, coolant could
make it difficult to see through the
windshield.
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Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 201909, Second-Printing Maintenance

WARNING: To reduce the risk of
personal injury, make sure the engine is
cool before unscrewing the coolant
pressure relief cap. The cooling system
is under pressure. Steam and hot liquid
can come out forcefully when you loosen
the cap slightly. WARNING:
Do not add coolant
further than the MAX mark.
When the engine is cold, check the
concentration and level of the coolant at
the intervals listed in the scheduled
maintenance information. See Scheduled
Maintenance
(page 557).
Note: Make sure that the coolant level is
between the
MIN and MAX marks on the
coolant reservoir.
Note: Coolant expands when it is hot. The
level may extend beyond the
MAX mark.
Maintain coolant concentration within
48% to 50%, which equates to a freeze
point between -30°F (-34°C) and -34°F
(-37°C). Check the coolant concentration
using a refractometer. We do not
recommend the use of hydrometers or
coolant test strips for measuring coolant
concentration.
Adding Coolant WARNING:
Do not add engine
coolant when the engine is on or the
cooling system is hot. Failure to follow
this instruction could result in personal
injury. WARNING:
Do not remove the
coolant reservoir cap when the engine is
on or the cooling system is hot. Wait 10
minutes for the cooling system to cool
down. Cover the coolant reservoir cap
with a thick cloth to prevent the
possibility of scalding and slowly remove
the cap. Failure to follow this instruction
could result in personal injury.
Note: Automotive fluids are not
interchangeable. Do not use coolant or
windshield washer fluid outside of its
specified function and vehicle location.
Note: Do not use stop leak pellets, cooling
system sealants, or non-specified additives
as they can cause damage to the engine
cooling or heating systems. Resulting
component damage may not be covered by
the vehicle Warranty.
It is very important to use prediluted
coolant approved to the correct
specification in order to avoid plugging the
small passageways in the engine cooling
system. See
Capacities and
Specifications (page 461). Do not mix
different colors or types of coolant in your
vehicle. Mixing of engine coolants or using
an incorrect coolant may harm the engine
or cooling system components and may
not be covered by the vehicle Warranty.
Note: Coolants marketed for all makes and
models may not be approved to our
specifications and may cause damage to
the cooling system. Resulting component
damage may not be covered by the vehicle
Warranty.
If the coolant level is at or below the
minimum mark, add prediluted coolant
immediately.
366
Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 201909, Second-Printing Maintenance

For vehicles with overflow coolant systems
with a non-pressurized cap on the coolant
recovery system, add coolant to the
coolant recovery reservoir when the engine
is cool. Add prediluted coolant to the
maximum level. For all vehicles which have
a coolant degas system with a pressurized
cap, or if it is necessary to remove the
coolant pressure relief cap on the radiator,
follow these steps to add engine coolant:
1. Turn the engine off and let it cool.
2. Unscrew the cap slowly. Any pressure
escapes as you unscrew the cap.
3. Fill the coolant reservoir slowly with prediluted engine coolant to within the
minimum and maximum range on the
engine coolant reservoir. If you
removed the radiator cap in an
overflow system, fill the radiator until
the coolant is visible and the radiator
is almost full. If coolant is added to
bring the level within the minimum and
maximum range when the engine is not
cold, the system may remain
underfilled.
4. Replace the coolant reservoir cap. Turn
the cap clockwise until it contacts the
hard stop.
5. Check the coolant level in the coolant reservoir the next few times you drive
your vehicle. If necessary, add enough
prediluted engine coolant to bring the
coolant level to the proper level.
Note: If prediluted coolant is not available,
use the approved antifreeze concentrate
diluting it to 50/50 with distilled water. See
Capacities and Specifications (page 461).
Using water that has not been deionized
may contribute to deposit formation,
corrosion or plugging of the small cooling
system passageways. If you have to add more than 1.1 qt (1 L) of
engine coolant per month, have your
vehicle checked as soon as possible.
Operating an engine with a low level of
coolant can result in engine overheating
and possible engine damage.
Note: During normal vehicle operation, the
coolant may change color from orange to
pink or light red. As long as the coolant is
clear and uncontaminated, this color change
does not indicate the coolant has degraded
nor does it require the coolant to be drained,
the system to be flushed, or the coolant to
be replaced.
Note: In case of emergency, you can add a
large amount of water without coolant in
order to reach a vehicle service location.
Water alone, without coolant, can cause
engine damage from corrosion, overheating
or freezing. When you reach a service
location, you must have the cooling system
drained, flushed and refilled using the
correct specification prediluted coolant or
antifreeze concentrate. See
Capacities and
Specifications (page 461).
Do not use the following as a coolant
substitute:
• Alcohol.
• Methanol.
• Brine.
• Any coolant mixed with alcohol or
methanol antifreeze.
Alcohol and other liquids can cause engine
damage from overheating or freezing.
Do not add extra inhibitors or additives to
the coolant. These can be harmful and
compromise the corrosion protection of
the coolant.
Recycled Coolant
We do not recommend the use of recycled
coolant as an approved recycling process
is not yet available.
367
Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 201909, Second-Printing Maintenance

If the engine reaches a preset
over-temperature condition, the engine
switches to alternating cylinder operation.
Each disabled cylinder acts as an air pump
and cools the engine.
When this occurs, your vehicle still
operates, however:
•
Engine power is limited.
• The air conditioning system turns off.
Continued operation increases the engine
temperature, causing the engine to
completely shut down. Your steering and
braking effort increases in this situation.
When the engine temperature cools, you
can re-start the engine. Have your vehicle
checked as soon as possible to minimize
engine damage.
When Fail-Safe Mode Is Activated WARNING: Fail-safe mode is for
use during emergencies only. Operate
your vehicle in fail-safe mode only as
long as necessary to bring your vehicle
to rest in a safe location and seek
immediate repairs. When in fail-safe
mode, your vehicle will have limited
power, will not be able to maintain
high-speed operation, and may
completely shut down without warning,
potentially losing engine power, power
steering assist, and power brake assist,
which may increase the possibility of a
crash resulting in serious injury. WARNING:
Do not remove the
coolant reservoir cap when the engine is
on or the cooling system is hot. Wait 10
minutes for the cooling system to cool
down. Cover the coolant reservoir cap
with a thick cloth to prevent the
possibility of scalding and slowly remove
the cap. Failure to follow this instruction
could result in personal injury. Your vehicle has limited engine power
when in the fail-safe mode, drive your
vehicle with caution. Your vehicle does not
maintain high-speed operation and the
engine may operate poorly.
Remember that the engine is capable of
shutting down to prevent engine damage.
In this situation:
1. Pull off the road as soon as safely
possible and switch the engine off.
2. If you are a member of a roadside assistance program, we recommend
that you contact your roadside
assistance service provider.
3. If this is not possible, wait a short period for the engine to cool.
4. Check the coolant level. If the coolant level is at or below the minimum mark,
add prediluted coolant immediately.
5. When the engine temperature cools, you can re-start the engine. Have your
vehicle checked as soon as possible to
minimize engine damage.
Note: Driving your vehicle without repair
increases the chance of engine damage.
Engine Coolant Temperature
Management
(If Equipped) WARNING:
To reduce the risk of
crash and injury, be prepared that the
vehicle speed may reduce and the
vehicle may not be able to accelerate
with full power until the coolant
temperature reduces.
If you tow a trailer with your vehicle, the
engine may temporarily reach a higher
temperature during severe operating
conditions, for example ascending a long
or steep grade in high ambient
temperatures.
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Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 201909, Second-Printing Maintenance

Multi-Point Inspection
In order to keep your vehicle running right,
it is important to have the systems on your
vehicle checked regularly. This can help
identify potential issues and prevent major
problems. We recommend having the
following multi-point inspection performed
at every scheduled maintenance interval
to help make sure your vehicle keeps
running great.Multi-Point Inspection
Hazard warning system operation
Accessory drive belt or belts
Horn operation
Battery performance
Radiator, cooler, heater and air conditioninghoses
Engine air filter
Suspension components for leaks ordamage
Exhaust system
Steering and linkage
Exterior lamps operation
Tires including the spare for wear andproper pressure 2
Fluid levels 1
; fill if necessary
Windshield for cracks, chips or pits
For oil and fluid leaks
Washer spray and wiper operation
Half-shaft dust boots
1 Brake, coolant recovery reservoir and window washer.
2 If your vehicle is equipped with a temporary mobility kit, check the tire sealant expiration
Use By date on the canister. Replace as needed.
Be sure to ask your dealership service
advisor or technician about the multi-point
vehicle inspection. It is a comprehensive
way to perform a thorough inspection of
your vehicle. Your checklist gives you
immediate feedback on the overall
condition of your vehicle. NORMAL SCHEDULED
MAINTENANCE
Intelligent Oil-Life Monitor
Your vehicle has an Intelligent Oil-Life
Monitor that determines when you should
change the engine oil based on how you
use your vehicle. By using several
important factors in its calculations, the
monitor helps reduce the cost of owning
your vehicle and reduces environmental
waste at the same time.
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Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 201909, Second-Printing Scheduled Maintenance

Alternative Engine Oil for Extremely Cold
Climates........................................................... 444
Automatic Transmission-Six Speed..........442
Automatic Transmission-Ten Speed.........442
Engine Coolant................................................... 443
Engine Oil............................................................. 443
Front Axle............................................................. 448
Fuel Tank.............................................................. 445
Grease.................................................................... 445
Hydraulic Brake System.................................. 446
Locks....................................................................... 447
Power Steering System.................................. 446
Rear Axle - 10.5.................................................. 448
Rear Axle - 11.8 ................................................... 449
Transfer Case....................................................... 447
Washer Reservoir.............................................. 449
Capacities and Specifications - 6.7L Diesel............................................................450
Air Conditioning System................................. 450
Alternative Engine Oil for Biodiesel Fuel Blends (B20 max)........................................ 454
Alternative Engine Oil for Extremely Cold Climates........................................................... 454
Alternative Engine Oil for Severe Duty Service.............................................................. 455
Automatic Transmission.................................. 451
Diesel Exhaust Fluid (DEF) Tank.................456
Engine Coolant................................................... 452
Engine Oil.............................................................. 452
Front Axle............................................................. 459
Fuel Tank.............................................................. 455
Grease .................................................................... 456
Hydraulic Brake System.................................. 457
Locks...................................................................... 458
Power Steering System................................... 457
Rear Axle - 10.5................................................... 459
Rear Axle - 10.8.................................................. 460
Rear Axle - 11.8 .................................................. 460
Transfer Case...................................................... 458
Washer Reservoir................................................ 461
Capacities and Specifications - 7.3L..................................................................461
Air Conditioning System................................. 462
Alternative Engine Oil for Extremely Cold Climates ........................................................... 464
Automatic Transmission................................ 462
Engine Coolant................................................... 463
Engine Oil............................................................. 463Front Axle.............................................................
468
Fuel Tank.............................................................. 465
Grease .................................................................... 465
Hydraulic Brake System................................. 466
Locks....................................................................... 467
Power Steering System.................................. 466
Rear Axle - 10.5.................................................. 468
Rear Axle - 10.8.................................................. 469
Rear Axle - 11.8 (With HD Tow Option)............................................................. 469
Rear Axle - 11.8 (Without HD Tow Option)............................................................. 470
Transfer Case...................................................... 467
Washer Reservoir................................................ 471
Capacities and Specifications................433
Cargo Lamps...................................................93
Car Wash See: Cleaning the Exterior.............................. 385
Catalytic Converter
......................................195
On-Board Diagnostics (OBD-II)................... 196
Readiness for Inspection and Maintenance (I/M) Testing.................................................... 197
Center Console
................................................171
Changing a Bulb............................................377 Cargo Lamp and Central High Mounted
Brake Lamp Bulbs........................................ 379
Fog Lamp Bulbs................................................. 378
Front Park and Direction Indicator Lamp Bulbs................................................................... 377
Headlamp Bulbs................................................. 377
LED Lamps.......................................................... 380
License Plate Lamp Bulb............................... 380
Rear Lamps, Brake Lamps, Rear Direction Indicator and Reversing Lamp
Bulbs.................................................................. 378
Changing a Fuse..........................................340 Fuses...................................................................... 340
Changing a Road Wheel...........................422 Dissimilar Spare Wheel and Tire Assembly
Information...................................................... 422
Location of the Spare Tire and Tools.........423
Stowing the Flat Tire or Spare Tire.............430
Tire Change Procedure.................................... 423
Changing the 12V Battery..........................373 Battery Management System....................... 374
Changing the Engine Air Filter - 6.2L..................................................................351
617
Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 201909, Second-Printing Index