2006 FORD SUPER DUTY check oil

•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 third and fourth gear 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 toLubricant specificationsin
this chapter.
•Perform all regularly scheduled maintenance items. Follow the
recommended maintenance schedule and owner maintenance checks
found in your vehicle’sscheduled 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).
•Adding certain accessories to your vehicle (for example bug
deflectors, rollbars/light bars, running boards, ski/luggage racks) may
reduce fuel economy.
•Using fuel blended with alcohol may lower fuel economy.
•Fuel economy may decrease with lower temperatures during the first
8–10 miles (12–16 km) of driving.
•Driving on flat terrain offers improved fuel economy as compared to
driving on hilly terrain.
•Transmissions give their best fuel economy when operated in the top
cruise gear and with steady pressure on the gas pedal.
2006 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Maintenance and Specifications
273

slip axles. Ford design rear axles contain a synthetic lubricant that does
not require changing unless the axle has been submerged in water. Dana
rear axles also contain a synthetic lubricant butdorequire a change.
Refer to yourscheduled maintenance informationfor change intervals
on Dana rear axles.
2Ensure the correct automatic transmission fluid is used. Transmission
fluid requirements are indicated on the dipstick handle. Check the
container to verify the fluid being added is of the correct type. Refer to
yourscheduled maintenance informationto determine the correct
service interval.
MERCON, MERCONV and MERCONSP are not
interchangeable. DO NOT mix MERCON, MERCONV and
MERCONSP. Use of dual usage fluids in an automatic
transmission application requiring MERCONSP may cause
transmission damage. Use of a transmission fluid other than the
recommended fluid may cause transmission damage.
ENGINE DATA
Engine 5.4L V8 engine 6.8L V10 engine
Cubic inches 330 415
Required fuel 87 octane 87 octane
Firing order 1-3-7-2-6-5-4-8 1-6-5-10-2-7-3-8-4-9
Spark plug gap1.02–1.28mm
(0.040–0.050 inch)*1.02–1.28mm
(0.040–0.050 inch)*
Ignition system Coil on plug Coil on plug
Compression ratio 9.8:1 9.2:1
*The 5.4L 3V and 6.8L 3V spark plug gap CANNOT be adjusted.
2006 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Maintenance and Specifications
293

wheels ......................................242
wiper blades ............................244
Climate control (see Air
conditioning or Heating) ............36
Clutch
fluid ..........................................277
operation while driving ..........178
recommended shift speeds ....179
Compass, electronic
set zone adjustment .................71
Console ........................................67
overhead ....................................55
Controls
steering column ........................66
Coolant
checking and adding ..............260
refill capacities ................264, 287
specifications ..........................290
Cruise control
(see Speed control) ....................61
Customer Assistance ................201
Ford accessories for your
vehicle .....................................247
Ford Extended Service
Plan ..........................................238
Getting assistance outside
the U.S. and Canada ..............239
Getting roadside assistance ...201
Getting the service you
need .........................................232
Ordering additional owner’s
literature .................................240
The Dispute Settlement
Board .......................................235
Utilizing the
Mediation/Arbitration
Program ...................................238D
Daytime running lamps
(see Lamps) ................................40
Dipstick
automatic transmission
fluid ..........................................278
engine oil .................................254
Doors
lubricant specifications ..........290
Driveline universal joint and
slip yoke ....................................283
Driving under special
conditions ..................178, 191, 194
sand .........................................193
snow and ice ...........................195
through water .................193, 197
E
Electronic message center ...67, 69
Emergencies, roadside
jump-starting ..........................224
Emergency Flashers .................202
Emission control system ..........274
Engine ................................293–294
cleaning ...................................242
coolant .....................................260
diesel ...........................................7
fail-safe cooling .......................265
idle speed control ...................258
lubrication specifications .......290
refill capacities ........................287
service points ..................251–252
starting after a collision .........203
Engine block heater .................170
Engine oil ..................................254
checking and adding ..............254
dipstick ....................................254
2006 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Index
308

K
Keyless entry system .................86
Keys
positions of the ignition .........165
L
Lamps
autolamp system .......................39
daytime running light ...............40
fog lamps ...................................40
headlamps .................................39
headlamps, flash to pass ..........41
instrument panel, dimming .....41
interior lamps ...........................45
replacing bulbs .............46, 48–53
Lane change indicator
(see Turn signal) ........................45
Lights, warning and indicator ....12
anti-lock brakes (ABS) ..........171
speed control ............................63
Load limits .................................146
Loading instructions .................153
Locks
childproof ..................................81
Lubricant specifications ...........290
Lug nuts ....................................223
Lumbar support, seats ...............94
M
Manual transmission .................178
fluid capacities ........................287
reverse .....................................180
Message center ...............67, 69–70
english/metric button ...............74
system check button ................73warning messages .....................75
Mirrors .........................................55
automatic dimming rearview
mirror ........................................58
fold away ...................................60
heated ........................................58
side view mirrors (power) .......58
signal .........................................59
Moon roof ....................................66
Motorcraft parts ................266, 286
O
Octane rating ............................270
Oil (see Engine oil) ..................254
Overdrive .....................................55
P
Parking brake ............................172
Parts (see Motorcraft parts) ....286
Pedals (see Power adjustable
foot pedals) .................................61
Power adjustable foot pedals .....61
Power distribution box
(see Fuses) ...............................209
Power door locks ........................80
Power mirrors .............................58
Power point .................................56
Power steering ..........................173
fluid, checking and adding ....276
fluid, refill capacity ................287
fluid, specifications .................290
Power Windows ...........................56
Preparing to drive your
vehicle ........................................174
2006 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Index
310