2010 FORD SUPER DUTY ECO mode

4WD system indicator lights
The 4WD system indicator lights illuminate only under the following
conditions. If these lights illuminate when driving in 2WD, contact your
authorized dealer as soon as possible.
•4x4 HIGH- momentarily
illuminates after the engine is
started. Illuminates when 4H (4x4
High) is engaged. Flashes when
shifting into or out of 4H (4x4 high) (ESOF systems only).
•4x4 LOW– momentarily
illuminates when the ignition is
turned to the ON position.
Illuminates when 4L (4x4 Low) is
engaged. Flashes when shifting into or out of 4L (4x4 Low) or if the
range shift conditions are not met (ESOF systems only).
Using a Manual Shift On Stop (MSOS) 4x4 system (if equipped)
Note: High shift efforts may be encountered when attempting to
shift into and out of 4x4 modes. It is recommended to allow the
vehicle to roll at a speed below 5 mph (8 km/h) when shifting.
Note:Some noise may be heard as the 4x4 system shifts or engages.
This is normal. In order to reduce engagement noise, it is recommended
that all shifts be performed at speeds below 5 mph (8 km/h).
2H (2WD)– For general on-road driving. Sends power to the rear
wheels only.
4H (4x4 High)– For winter and off-road conditions. Sends power to
front and rear wheels.This mode is not intended for use on dry
pavement.
N (Neutral)– Only used when towing the vehicle.
4L (4x4 Low)– For low-speed off-road applications that require extra
power such as steep grades, deep sand or pulling a boat out of the water.
Sends power to front and rear wheels.This mode is not intended for
use on dry pavement.
4x4
HIGH
4x4
LOW
Driving
286
2010 F-250/350/450/550(f23)
Owners Guide, 1st Printing
USA(fus)

Shifting from 4x4 HIGH to 2WD
Rotate the 4x4 control to 2WD at
any forward speed. Disengagement
of the transfer case and front hubs
may be delayed due to torque bind
which is caused by driving on dry
hard surfaces or performing tight
turns while using the 4x4 system.
•Yo udo notneed to operate the
vehicle in R (Reverse) to
disengage your front hubs, but it
will eliminate any torque bind and
allow the system to immediately disengage.
Shifting from 4x4 HIGH to 4x4 LOW
If the range shift requirements are not met, the 4x4 Low
indicator will flash continuously.
1. Bring the vehicle to a complete stop.
2. Place the gearshift in N (Neutral). If the vehicle is equipped with a
manual transmission, also depress the clutch pedal.
3. Move the 4x4 control to the 4x4
LOW position.
4. Hold the shift conditions until the
4x4 LOW indicator light illuminates.
5. If the 4x4 LOW indicator light
flashes continuously for more than
10 seconds, allow the vehicle to
move at a speed below 5 mph
(8 km/h), then repeat steps 2
through 5 while the vehicle is rolling
before reporting any shift concerns to your authorized dealer.
Shifting from 4x4 LOW to 4x4 HIGH or 2WD
If the range shift requirements are not met, the 4x4 Low or 4x4
High indicator will flash continuously, depending on which mode
the shift began.
1. Bring the vehicle to a complete stop.
2. Place the gearshift in N (Neutral).
Driving
290
2010 F-250/350/450/550(f23)
Owners Guide, 1st Printing
USA(fus)

transmission is in P (Park) or the manual transmission is in gear. Do not
leave the vehicle unattended with the transfer case in the N (Neutral)
position. Always set the parking brake fully and turn off the ignition
when leaving the vehicle.
WARNING:Always set the parking brake fully and make sure
the gearshift is latched in P (Park). Turn the ignition to the off
position and remove the key whenever you leave your vehicle.
WARNING:If the parking brake is fully released, but the brake
warning lamp remains illuminated, the brakes may not be
working properly. See your authorized dealer.
4WD Systems
4WD (when you select a 4WD mode), uses all four wheels to power the
vehicle. This increases traction, enabling you to drive over terrain and
road conditions that a conventional two-wheel drive vehicle cannot.
Power is supplied to all four wheels through a transfer case. On 4WD
vehicles, the transfer case allows you to select 4WD when necessary.
Information on transfer case operation and shifting procedures can be
found in theDrivingchapter. Information on transfer case maintenance
can be found in theMaintenance and Specificationschapter. You
should become thoroughly familiar with this information before you
operate your vehicle.
Normal characteristics
On some 4WD models, the initial shift from two-wheel drive to 4x4 while
the vehicle is moving can cause some momentary clunk and ratcheting
sounds. This is the front drivetrain coming up to speed and the
automatic locking hubs engaging and is not cause for concern.
Sand
When driving over sand, try to keep all four wheels on the most solid
area of the trail. Avoid reducing the tire pressures but shift to a lower
gear and drive steadily through the terrain. Apply the accelerator slowly
and avoid spinning the wheels.
Avoid excessive speed because vehicle momentum can work against you
and cause the vehicle to become stuck to the point that assistance may
be required from another vehicle. Remember, you may be able to back
out the way you came if you proceed with caution.
Driving
294
2010 F-250/350/450/550(f23)
Owners Guide, 1st Printing
USA(fus)

Dissimilar spare tire/wheel information
WARNING:Failure to follow these guidelines could result in an
increased risk of loss of vehicle control, injury or death.
If you have a dissimilar spare tire/wheel, then it is intended for
temporary use only. This means that if you need to use it, you should
replace it as soon as possible with a road tire/wheel that is the same size
and type as the road tires and wheels that were originally provided by
Ford. If the dissimilar spare tire or wheel is damaged, it should be
replaced rather than repaired.
A dissimilar spare tire/wheel is defined as a spare tire and/or wheel that
is different in brand, size or appearance from the road tires and wheels
and can be one of three types:
1.T-type mini-spare:This spare tire begins with the letter “T” for tire
size and may have “Temporary Use Only” molded in the sidewall
2.Full-size dissimilar spare with label on wheel:This spare tire has
a label on the wheel that states: “THIS TIRE AND WHEEL FOR
TEMPORARY USE ONLY”
When driving with one of the dissimilar spare tires listed above,do not:
•Exceed 50 mph (80 km/h)
•Load the vehicle beyond maximum vehicle load rating listed on the
Safety Compliance Label
•Use snow chains on the end of the vehicle with the dissimilar spare
tire
•Use more than one dissimilar spare tire at a time
•Use commercial car washing equipment
•Try to repair the dissimilar spare tire
Use of one of the dissimilar spare tires listed above at any one wheel
location can lead to impairment of the following:
•Handling, stability and braking performance
•Comfort and noise
•Ground clearance and parking at curbs
•Winter weather driving capability
•Wet weather driving capability
It is not recommended that the vehicle be operated in 4WD modes with
a temporary emergency spare tire. If 4WD operation is necessary, do not
operate above speeds of 10 mph (16 km/h) or for distances above
50 miles (80 km).
Roadside Emergencies
315
2010 F-250/350/450/550(f23)
Owners Guide, 1st Printing
USA(fus)

Habits
•Smooth, moderate operation can yield up to 10% savings in fuel.
•
Steady speeds without stopping will usually give the best fuel economy.
•Idling for long periods of time (greater than one minute) may waste
fuel.
•Anticipate stopping; slowing down may eliminate the need to stop.
•Sudden or hard accelerations may reduce fuel economy.
•Slow down gradually.
•Driving at reasonable speeds (traveling at 55 mph [88 km/h] uses 15%
less fuel than traveling at 65 mph [105 km/h]).
•Revving the engine before turning it off may reduce fuel economy.
•Using the air conditioner or defroster may reduce fuel economy.
•You may want to turn off the speed control in hilly terrain if
unnecessary shifting between the top gears occurs. Unnecessary
shifting of this type could result in reduced fuel economy.
•Warming up a vehicle on cold mornings is not required and may
reduce fuel economy.
•Resting your foot on the brake pedal while driving may reduce fuel
economy.
•Combine errands and minimize stop-and-go driving.
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 toMaintenance product
specifications and capacitiesin this chapter.
•Perform all regularly scheduled maintenance items. Follow the
recommended maintenance schedule and owner maintenance checks
found inscheduled maintenance information.
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).
Maintenance and Specifications
377
2010 F-250/350/450/550(f23)
Owners Guide, 1st Printing
USA(fus)

Lifestyle
Ash cup / smoker’s package
Bedliners and bedmats
Cargo organization and management
Towing mirrors
Trailer hitches, wiring harnesses and accessories
Peace of mind
Keyless entry keypad
Remote start
Vehicle security systems
Wheel locks
Not all accessories are available for all models.
For maximum vehicle performance, keep the following information in
mind when adding accessories or equipment to your vehicle:
•When adding accessories, equipment, passengers and luggage to your
vehicle, do not exceed the total weight capacity of the vehicle or of
the front or rear axle (GVWR or GAWR as indicated on the Safety
Compliance Certification Label). Consult your authorized dealer for
specific weight information.
•The Federal Communications Commission (FCC) and Canadian Radio
Telecommunications Commission (CRTC) regulate the use of mobile
communications systems — such as two-way radios, telephones and
theft alarms - that are equipped with radio transmitters. Any such
equipment installed in your vehicle should comply with FCC or CRTC
regulations and should be installed only by your authorized dealer.
•
Mobile communications systems may harm the operation of your vehicle,
particularly if they are not properly designed for automotive use.
•To avoid interference with other vehicle functions, such as anti-lock
braking systems, amateur radio users who install radios and antennas
onto their vehicle should not locate the Amateur Radio Antennas in
the area of the driver’s side hood.
•Electrical or electronic accessories or components that are added to
the vehicle by the authorized dealer or the owner may adversely affect
battery performance and durability.
Accessories
398
2010 F-250/350/450/550(f23)
Owners Guide, 1st Printing
USA(fus)