Filling the tank
The advertised fuel capacity of the fuel tank on your vehicle is equal to
the rated refill capacity of the fuel tank as listed in theRefill capacities
section of this chapter.
The advertised capacity is the amount of the indicated capacity and the
empty reserve combined. Indicated capacity is the difference in the
amount of fuel in a full tank and a tank when the fuel gauge indicates
empty. Empty reserve is the small amount of fuel remaining in the fuel
tank after the fuel gauge indicates empty.
The amount of usable fuel in the empty reserve varies and should
not be relied upon to increase driving range. When refueling your
vehicle after the fuel gauge indicates empty, you might not be
able to refuel the full amount of the advertised capacity of the
fuel tank due to the empty reserve still present in the tank.
For consistent results when filling the fuel tank:
•Turn the engine/ignition switch to the off position prior to refueling,
an error in the reading will result if the engine is left running.
•Use the same filling rate setting (low — medium — high) each time
the tank is filled.
•Allow no more than 2 automatic click-offs when filling.
•Always use fuel with the recommended octane rating.
•Use a known quality gasoline, preferably a national brand.
•Use the same side of the same pump and have the vehicle facing the
same direction each time you fill up.
•Have the vehicle loading and distribution the same every time.
Your results will be most accurate if your filling method is consistent.
Calculating fuel economy
1. Fill the fuel tank completely and record the initial odometer reading
(in miles or kilometers).
2. Each time you fill the tank, record the amount of fuel added (in
gallons or liters).
3. After at least three to five tank fill-ups, fill the fuel tank and record
the current odometer reading.
4. Subtract your initial odometer reading from the current odometer
reading.
REVIEW COPY
2005 F250/350/450/550(f23), Owners Guide (post-2002-fmt)(own2002),
Market:USA_English(fus)
Maintenance and Specifications
266
K
Keyless entry system .................86
Keys
positions of the ignition .........175
L
Lamps
autolamp system .......................40
daytime running light ...............41
fog lamps ...................................41
headlamps .................................40
headlamps, flash to pass ..........42
instrument panel, dimming .....42
interior lamps ...........................46
replacing bulbs ...................47–54
Lane change indicator
(see Turn signal) ........................46
Lights, warning and indicator ....12
anti-lock brakes (ABS) ..........181
speed control ............................65
Load limits .................................160
Loading instructions .................165
Locks
childproof ..................................81
Lubricant specifications ...283, 287
Lug nuts ....................................148
Lumbar support, seats ...............95
M
Manual transmission .................188
fluid capacities ........................281
lubricant specifications ..........287
reverse .....................................190
Message center ...............67, 69–70
english/metric button ...............74
system check button ................73warning messages .....................75
Mirrors ...................................56, 60
automatic dimming rearview
mirror ........................................60
fold away ...................................62
heated ........................................60
side view mirrors (power) .......60
signal .........................................61
Moon roof ....................................57
Motorcraft parts ................265, 280
O
Octane rating ............................264
Oil (see Engine oil) ..................249
Overdrive .....................................56
P
Parking brake ............................182
Parts (see Motorcraft parts) ....280
Pedals (see Power adjustable
foot pedals) .................................63
Power adjustable foot pedals .....63
Power distribution box
(see Fuses) ...............................219
Power door locks ........................80
Power mirrors .............................60
Power point .................................58
Power steering ..........................183
fluid, checking and adding ....271
fluid, refill capacity ................281
fluid, specifications .........283, 287
Power Windows ...........................58
Preparing to drive
your vehicle ...............................184
R
Radio ..........................20, 22, 25, 28
REVIEW COPY
2005 F250/350/450/550(f23), Owners Guide (post-2002-fmt)(own2002),
Market:USA_English(fus)
Index
302
