2012 FORD F250 engine

Note:During normal vehicle operation, the engine coolant may change
color from orange to pink or light red. As long as the engine coolant is
clear and uncontaminated, this color change does not indicate the engine
coolant has degraded nor does it require the engine coolant to be
drained, the system to be flushed, or the engine coolant to be replaced.
•DO NOT MIX different colors or types of coolant in your vehicle.
Mixing of engine coolants may harm your engine’s cooling system.
Only use engine coolant that meets the Ford specification. Generic
coolants for all makes and models may not meet the Ford
specification. The use of an improper coolant may harm engine and
cooling system components and may void the warranty. See
Capacities and Specificationsfor more information.
•In case of emergency, a large amount of water without engine coolant
may be added in order to reach a vehicle service location. In this
instance, the cooling system must be drained, chemically cleaned, and
refilled with prediluted engine coolant as soon as possible per the
instructions in the Workshop Manual. Water alone (without engine
coolant) can cause engine damage from corrosion, overheating or
freezing.
•Do not use alcohol, methanol, brine or any engine coolants mixed with
alcohol or methanol antifreeze (coolant). 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 engine coolant.
For vehicles with overflow coolant systems and a non-pressurized
cap on the coolant recovery system,add prediluted engine coolant to
the FULL COLD level on the coolant recovery reservoir when the engine
is cool.
For vehicles with overflow coolant systems and a pressure relief
cap on the radiator,follow these steps to add engine coolant:
1. Turn off the engine and let it cool.
2. When the engine is cool, wrap a thick cloth around the coolant
pressure relief cap on the radiator.
3. Slowly turn the coolant pressure relief cap counterclockwise until
pressure begins to release.
4. Step back while the pressure releases.
5. When you are sure that all the pressure has been released, use the
cloth to turn it counterclockwise and remove the cap.
Maintenance and Specifications
381
2012 F-250/350/450/550(f23)
Owners Guide, 4th Printing
USA(fus)

6. Remove the cap from the engine coolant reservoir.
7. Fill the coolant reservoir slowly with prediluted engine coolant to the
FULL COLD level, or between the MIN and MAX marks, or the COLD
FILL RANGE, as listed on the engine coolant reservoir (depending upon
application).
8. Add prediluted engine coolant to the radiator until the coolant is
visible and the radiator is almost full.
9. Install the cap to the engine coolant reservoir. Tighten the cap in
order to prevent coolant loss.
10. Install the pressure relief cap to the radiator. Tighten the cap in
order to prevent coolant loss.
For vehicles which have a coolant degas system with a
pressurized cap on the coolant reservoir,follow these steps to add
engine coolant:
1. Turn off the engine and let it cool.
2. When the engine is cool, wrap a thick cloth around the coolant
pressure relief cap on the coolant reservoir.
3. Slowly turn the coolant pressure relief cap counterclockwise until
pressure begins to release.
4. Step back while the pressure releases.
5. When you are sure that all the pressure has been released, use the
cloth to turn it counterclockwise and remove the cap.
6. Fill the coolant reservoir slowly with prediluted engine coolant to
within the FULL COLD level, or between the MIN and MAX marks, or
the COLD FILL RANGE, as listed on the engine coolant reservoir
(depending upon application).
Whenever you add coolant, check the coolant concentration. See
Checking the engine coolantin this chapter. If the concentration is not
50%, drain some coolant and adjust the concentration. It may take
several drains and additions to obtain a 50% coolant concentration.
The next few times you drive the vehicle, check the coolant level in the
coolant reservoir. If necessary, add enough prediluted engine coolant to
bring the coolant level to the proper level.
If you have to add more than 1.0 quart (1.0 liter) of engine coolant per
month, have your authorized dealer check the engine cooling system. Your
cooling system may have a leak. Operating an engine with a low level of
coolant can result in engine overheating and possible engine damage.
Maintenance and Specifications
382
2012 F-250/350/450/550(f23)
Owners Guide, 4th Printing
USA(fus)

Recycled engine coolant
Ford Motor Company does not recommend the use of recycled engine
coolant since a Ford-approved recycling process is not yet available.
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
toMaintenance product specifications and capacitiesin this chapter.
If your vehicle is equipped with a diesel engine,refer to the
Maintenance product specifications and capacitiessection of your
diesel supplement.
Fill your engine coolant reservoir as outlined previously in theAdding
engine coolantsection.
Severe climates
If you drive in extremely cold climates:
•It may be necessary to have a Ford authorized dealer increase the
coolant concentration above 50%.
•A coolant concentration of 60% will provide improved freeze point
protection. Engine coolant concentrations above 60% will decrease the
overheat protection characteristics of the engine coolant and may
cause engine damage.
If you drive in extremely hot climates:
•It may be necessary to have a Ford authorized dealer decrease the
coolant concentration to 40%.
•A coolant concentration of 40% will provide improved overheat
protection. Engine coolant concentrations below 40% will decrease the
corrosion/freeze protection characteristics of the engine 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.
Maintenance and Specifications
383
2012 F-250/350/450/550(f23)
Owners Guide, 4th Printing
USA(fus)

What you should know about fail-safe cooling (if equipped)
If the engine coolant supply is depleted, this feature allows the vehicle to
be driven temporarily before incremental component damage is incurred.
The “fail-safe” distance depends on ambient temperatures, vehicle load
and terrain.
WARNING:If fail-safe cooling activates, pull off the road as
soon as safely possible and turn the engine off. The engine may
automatically shut off while driving without further indication.
How fail-safe cooling works
If the engine begins to overheat:
•The engine coolant temperature gauge will move to the red (hot)
area.
•The message center will indicate the engine is overheating.
•The service engine soon
indicator will illuminate.
If the engine reaches a preset over-temperature condition, the engine
will automatically switch to alternating cylinder operation. Each disabled
cylinder acts as an air pump and cools the engine.
When this occurs the vehicle will still operate. However:
•The engine power will be limited.
•The air conditioning system will be disabled.
Continued operation will increase the engine temperature and the engine
will completely shut down, causing steering and braking effort to
increase.
Once the engine temperature cools, the engine can be restarted. Take
your vehicle to an authorized dealer as soon as possible to minimize
engine damage.
When fail-safe mode is activated
You have limited engine power when in the fail-safe mode, so drive the
vehicle with caution. The vehicle will not be able to maintain high-speed
operation and the engine will run rough. Remember that the engine is
capable of completely shutting down automatically to prevent engine
damage; therefore:
1. Pull off the road as soon as safely possible and turn off the engine.
2. Arrange for the vehicle to be taken to an authorized dealer.
Maintenance and Specifications
384
2012 F-250/350/450/550(f23)
Owners Guide, 4th Printing
USA(fus)

3. If this is not possible, wait a short period for the engine to cool.
4. Check the coolant level and replenish if low.
WARNING:Never remove the coolant reservoir cap while the
engine is running or hot.
5. Re-start the engine and take your vehicle to an authorized dealer.
Driving the vehicle without repairing the engine problem
increases the chance of engine damage. Take your vehicle to an
authorized dealer as soon as possible.
Engine fluid temperature management (except 6.8L V10)
Your vehicle has been designed to pull a trailer, but because of the added
load, the vehicle’s engine may temporarily reach higher temperatures
during severe operating conditions such as ascending a long or steep
grade while pulling a trailer in hot ambient temperatures.
At this time, you may notice your engine coolant temperature gauge
needle move toward the H and the POWER REDUCED TO LOWER
TEMP message may appear on the message center.
You may notice a reduction in the vehicle’s speed caused by reduced
engine power. Your vehicle has been designed to enter this mode if
certain high temperature/high load conditions take place in order to
manage the engine’s fluid temperatures. The amount of speed reduction
will depend on the vehicle loading, towing, grade, ambient temperature,
and other factors. If this occurs, there is no need to pull off the road.
The vehicle can continue to be driven while this message is active.
WARNING:To reduce the risk of collision and injury, be
prepared that the vehicle speed may reduce and the vehicle may
not be able to accelerate with full power until the fluid temperatures
reduce.
The air conditioning may also cycle on and off during severe operating
conditions to protect overheating of the engine. When the engine coolant
temperature decreases to a more normal operating temperature, the air
conditioning will turn on once again.
If you notice any of the following:
•the engine coolant temperature gauge moves fully into the red (hot)
area
•the coolant temperature warning light illuminates
Maintenance and Specifications
385
2012 F-250/350/450/550(f23)
Owners Guide, 4th Printing
USA(fus)

•the service engine soon indicator illuminates
1. Pull off the road as soon as safely possible and place the vehicle in P
(Park).
2. Leave the engine running until the coolant temperature gauge needle
moves away from the H range. After several minutes, if this does not
happen, follow the remaining steps.
3. Turn the engine off and wait for it to cool before checking the coolant
level.
WARNING:Never remove the coolant reservoir cap while the
engine is running or hot.
4. If the coolant level is normal, you may restart your engine and
continue on.
5. If the coolant is low, add coolant, restart the engine and take your
vehicle to an authorized dealer. SeeAdding engine coolantin this
chapter for more information.
Refer to fail-safe cooling for additional information.
FUEL FILTER
Your vehicle is equipped with a lifetime fuel filter (gasoline vehicles only)
that is integrated with the fuel tank. Regular maintenance or
replacement is not needed. For diesel engine information, refer to the
diesel supplement.
WHAT YOU SHOULD KNOW ABOUT AUTOMOTIVE FUELS
Important safety precautions
WARNING:Do not overfill the fuel tank. The pressure in an
overfilled tank may cause leakage and lead to fuel spray and fire.
WARNING:The fuel system may be under pressure. If the fuel
filler cap is venting vapor or if you hear a hissing sound, wait
until it stops before completely removing the fuel filler cap. Otherwise,
fuel may spray out and injure you or others.
Maintenance and Specifications
386
2012 F-250/350/450/550(f23)
Owners Guide, 4th Printing
USA(fus)

•Be particularly careful if you are taking “Antabuse” or other forms of
disulfiram for the treatment of alcoholism. Breathing gasoline and/or
ethanol vapors, or skin contact could cause an adverse reaction. In
sensitive individuals, serious personal injury or sickness may result. If
fuel is splashed on the skin, promptly wash skin thoroughly with soap
and water. Consult a physician immediately if you experience an
adverse reaction.
•FFV fuel tanks may contain zero to 85% ethanol. Any fuel blends
containing gasoline and ethanol should be treated the same as “Fuel
Ethanol.” To identify if your vehicle is an FFV, it may be equipped
with a yellow fuel cap with the text “E85/Gasoline”, or check if there
is a label on the fuel filler door.
Pure ethanol is the alcohol which is the intoxicating agent in liquor, beer
and wine. It is distilled from the fermentation of plants such as field corn
and sugar cane. When ethanol is produced for use in motor fuels, a small
amount of gasoline is added to make it unfit for beverage use. The
resulting ethanol blend is called denatured fuel ethanol meaning that it is
denatured with 2% to 5% gasoline and is suitable for automotive use.
During the summer season, fuel ethanol may contain a maximum of 85%
denatured ethanol (Ed85) and 15% unleaded gasoline. The fuel ethanol
has a higher octane rating than unleaded regular or premium gasoline
and this allows the design of engines with greater efficiency and power.
Winter blends may contain up to 75% denatured ethanol (Ed75) and up
to 25% unleaded gasoline to enhance cold engine starts. Severely cold
weather may require additional measures for reliable starting. Refer to
Startingin theDrivingchapter.
Ethanol is more chemically active than gasoline. It corrodes some metals
and causes some plastic and rubber components to swell, break down or
become brittle and crack, especially when mixed with gasoline. Special
materials and procedures have been developed for flexible fuel vehicles
and the dispensers used by ethanol fuel providers.
WARNING:Flexible fuel components and standard unleaded
gasoline fuel components are not interchangeable. If your vehicle
is not serviced in accordance with flexible fuel vehicles procedures,
damage may occur and your warranty may be invalidated.
Maintenance and Specifications
388
2012 F-250/350/450/550(f23)
Owners Guide, 4th Printing
USA(fus)

WARNING:When refueling always shut the engine off and
never allow sparks or open flames near the filler neck. Never
smoke while refueling. Fuel vapor is extremely hazardous under certain
conditions. Care should be taken to avoid inhaling excess fumes.
WARNING:The flow of fuel through a fuel pump nozzle can
produce static electricity, which can cause a fire if fuel is
pumped into an ungrounded fuel container.
Refueling
WARNING:Fuel vapor burns violently and a fuel fire can cause
severe injuries. To help avoid injuries to you and others:
•Read and follow all the instructions on the pump island;
•Turn off your engine when you are refueling;
•Do not smoke if you are near fuel or refueling your vehicle;
•Keep sparks, flames and smoking materials away from fuel;
•Stay outside your vehicle and do not leave the fuel pump unattended
when refueling your vehicle — this is against the law in some places;
•Keep children away from the fuel pump; never let children pump
fuel.
•Do not use personal electronic devices while refueling.
Use the following guidelines to avoid electrostatic charge build-up when
filling an ungrounded fuel container:
•Place approved fuel container on the ground.
•DO NOT fill a fuel container while it is in the vehicle (including the
cargo area).
•Keep the fuel pump nozzle in contact with the fuel container while
filling.
•DO NOT use a device that would hold the fuel pump handle in the fill
position.
Fuel filler cap
When fueling your vehicle:
1. Turn the engine off.
2. Carefully turn the filler cap counterclockwise until it spins off.
3. Pull to remove the cap from the fuel filler pipe.
Maintenance and Specifications
389
2012 F-250/350/450/550(f23)
Owners Guide, 4th Printing
USA(fus)