2011 FORD SUPER DUTY fuel

Operating in dusty conditions such as unpaved or dusty roads
Inspect frequently, service as
required– Replace cabin air filter (if equipped).
– Replace engine air filter.
Every 5,000 miles (8,000 km)– Rotate tires, inspect tires for wear and measure tread
depth.
– Inspect the wheels and related components for
abnormal noise, wear, looseness or drag.
Every 5,000 miles (8,000 km) or
6 months– Change engine oil and replace oil filter.
– Inspect and lubricate U-joints.
Every 15,000 miles (24,000 km)– Replace fuel filter (Ranger).
Every 30,000 miles (48,000 km)– Change automatic transmission fluid (not required on
6R80 or TorqShifttransmissions).
– Replace wheel bearing grease and grease seals on 4x2
front wheel bearings (if non-sealed bearings are used).
Every 50,000 miles (80,000 km)– Change manual transmission fluid.
– Change rear axle lubricant (E-450 and F-450/550
only).
Every 60,000 miles (96,000 km)– Change transfer case fluid.
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2011 F-250/350/450/550(f23)
Owners Guide, 1st Printing
USA(fus)

Off-road operation
Inspect frequently, service as
required– Replace cabin air filter (if equipped).
– Replace engine air filter.
– Inspect and lubricate steering linkage ball joints and
U-joints (if equipped with grease fittings).
Every 5,000 miles (8,000 km) or
6 months– Change engine oil and replace oil filter.
– Rotate tires, inspect tires for wear and measure tread
depth.
– Inspect the wheels and related components for
abnormal noise, wear, looseness or drag.
Every 30,000 miles (48,000 km)– Change automatic transmission fluid (not required on
6R80 or TorqShifttransmissions).
– Replace wheel bearing grease and grease seals on 4x2
front wheel bearings (if non-sealed bearings are used).
Every 50,000 miles (80,000 km)– Change manual transmission fluid.
– Change rear axle lubricant (E-450 and F-450/550
only).
Every 60,000 miles (96,000 km)– Change transfer case fluid.
Exclusive use of E85 (Flex Fuel Vehicles only)
Every oil change– If ran exclusively on E85, fill the fuel tank full with
regular unleaded fuel.
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2011 F-250/350/450/550(f23)
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USA(fus)

EXCEPTIONS
In addition, there are several exceptions to the Normal Schedule. They
are listed below:
Normal Vehicle Axle Maintenance
❑Rear axles and power take-off (PTO) units containing synthetic lubricant and light duty trucks equipped with Ford-design
axles are lubricated for life. These lubricants are not to be checked or changed unless a leak is suspected, service is re-
quired or the axle assembly has been submerged in water. The axle and PTO lubricant should be changed anytime the axle
and PTO have been submerged in water. During extended trailer tow operation above 70°F (21°C) ambient and wide open
throttle for extended periods above 45 mph (72 km/h), non-synthetic rear axle lubricants should be replaced every
3,000 miles (4,800 km) or 3 months, whichever occurs first. The 3,000 mile (4,800 km) lubricant change interval may
be waived if the axle was filled with 75W140 synthetic gear lubricant meeting Ford specification WSL-M2C192-A, part
number F1TZ-19580-B or equivalent. Add friction modifier XL-3 (EST-M2C118-A) or equivalent for complete refill of Traction-
Lok rear axles (refer to
Maintenance product and specificationsin theMaintenance and Specificationschapter for details).
The axle lubricant should be changed anytime an axle has been submerged in water.
Police/Taxi/Livery Vehicle Axle Maintenance
❑Replace rear axle lubricant every 100,000 miles (160,000 km). Rear axle lubricant change may be waived if the axle
was filled with 75W140 synthetic gear lubricant meeting Ford specification WSL-M2C192-A, part number FITZ-19580-B or
equivalent. Add four ounces (118 mL) of additive friction modifier XL-3 (EST-M2C118-A) or equivalent for complete refill of
Traction-Lok rear axles. The axle lubricant should be changed anytime the axle has been submerged in water.
E–450 and F–450/550 Axle Maintenance
❑Replace rear axle lubricant every 100,000 miles (160,000 km) under normal driving conditions on all E–450 and
F–450/550 applications. For E–450 and F–450/550 vehicles operated at or near maximum Gross Vehicle Weights, the
rear axle lubricant should be replaced every 50,000 miles (80,000 km). In addition, this 50,000 mile (80,000 km)
schedule should be observed when the vehicles are operated under the Special Operating Conditions.
California Fuel Filter Replacement
❑If vehicle is registered in California, the California Air Resources Board has determined that the failure to perform this main-
tenance item will not nullify the emission warranty or limit recall liability prior to the completion of the vehicle’s useful life.
Ford Motor Company, however, urges you to have all recommended maintenance services performed at the specified inter-
vals and to record all vehicle service.
Class A Motorhome
❑Every two years - Change brake fluid
Scheduled Maintenance Guide
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2011 F-250/350/450/550(f23)
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USA(fus)

refill capacities ........................400
service points ..................362–364
Engine block heater .................263
Engine oil ..................................366
checking and adding ..............366
dipstick ....................................366
filter, specifications ........367, 399
recommendations ...................367
refill capacities ........................400
Event data recording ....................8
Exhaust fumes ..........................262
F
Fail safe cooling ........................374
Fleet MyKey programming ......126
Flexible Fuel Vehicle
(FFV) .........................................377
Floor mats .................................120
Fluid capacities .........................400
Fog lamps ....................................87
Four-Wheel Drive vehicles .......293
driving off road .......................299
electronic shift ................294, 298
indicator light .........................295
lever operated shift ................295
manual locking hubs ..............293
preparing to drive your
vehicle .....................................278
Fuel ............................................377
calculating fuel
economy ............................25, 384
cap ...........................................380
capacity ...................................400
choosing the right fuel ...........381
detergent in fuel .....................383
filling your vehicle
with fuel ..................377, 380, 384filter, specifications ........377, 399
fuel pump shut-off ..................313
improving fuel economy ........384
octane rating ...................382, 404
quality ......................................382
running out of fuel .................383
safety information relating to
automotive fuels .....................377
Fuel - flex fuel vehicle
(FFV) .........................377, 381–382
Fuses ..................................313–314
G
Garage door opener ..................115
Gas cap (see Fuel cap) ............380
Gas mileage
(see Fuel economy) .................384
Gauges .........................................21
H
Hazard flashers .........................312
Headlamps ...................................86
aiming ..................................88–89
autolamp system .......................86
daytime running lights .............88
flash to pass ..............................87
high beam .................................87
replacing bulbs .........................92
turning on and off ....................86
Heating
heating and air conditioning
system .................................78, 81
Hill descent mode .....................275
Hill launch assist .......................287
Hood ..........................................362
Index
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2011 F-250/350/450/550(f23)
Owners Guide, 1st Printing
USA(fus)

SecuriCode keyless entry
system ........................................145
SecuriLock passive anti-theft
system ................................146–147
Servicing your vehicle ..............361
Setting the clock
AM/FM/CD .................................64
Snowplowing .................7, 307–309
SOS Post Crash Alert ...............185
Spark plugs,
specifications .....................399, 404
Special notice ................................7
ambulance conversions ..............7
diesel-powered vehicles .............6
four-wheel drive vehicles .......309
utility-type vehicles ....................7
Speed control ............................109
Starting a flex fuel vehicle .......262
Starting your vehicle ........259–262
jump starting ..........................340
Steering wheel
controls ....................................111
tilting .........................................98
SYNC..........................................77
T
Tailgate ......................................121
Tilt steering wheel ......................98
Tire Pressure Monitoring
System (TPMS)
Tires, Wheels and Loading ....232
Tires ...........................214–216, 323
alignment ................................224
care ..........................................220
changing ..................323, 326, 329
checking the pressure ............219inflating ...................................217
label .........................................231
replacing ..................................222
rotating ....................................225
safety practices .......................223
sidewall information ...............227
snow tires and chains ............238
spare tire .................................324
terminology
.............................216
tire grades
...............................215
treadwear
........................215, 221
Towing
.......................................247
recreational towing
.................258
Trailer Brake
Controller-Integrated
..............251
trailer towing
..........................247
wrecker
....................................343
Traction control
........................267
Trailer Brake
Controller-Integrated
................251
Trailer sway control
..................275
Transfer case
fluid checking
.........................394
Transmission
.............................281
brake-shift interlock (BSI)
....279
fluid, checking and adding
(automatic)
.............................391
fluid, refill capacities
..............400
Turn signal
..................................90
U
Universal garage door opener
..115
Upfitter controls
.......................112
USB port
......................................71
Index
440
2011 F-250/350/450/550(f23)
Owners Guide, 1st Printing
USA(fus)