Treadwear
The treadwear grade is a comparative rating based on the wear rate of
the tire when tested under controlled conditions on a specified
government test course. For example, a tire graded 150 would wear one
and one-half (1 1/2) times as well on the government course as a tire
graded 100. The relative performance of tires depends upon the actual
conditions of their use, however, and may depart significantly from the
norm due to variations in driving habits, service practices, and
differences in road characteristics and climate.
Traction AA A B C
The traction grades, from highest to lowest are AA, A, B, and C. The
grades represent the tire’s ability to stop on wet pavement as measured
under controlled conditions on specified government test surfaces of
asphalt and concrete. A tire marked C may have poor traction
performance.
The traction grade assigned to this tire is based on
straight-ahead braking traction tests, and does not include
acceleration, cornering, hydroplaning or peak traction characteristics.
Temperature A B C
The temperature grades are A (the highest), B and C, representing the
tire’s resistance to the generation of heat and its ability to dissipate heat
when tested under controlled conditions on a specified indoor laboratory
test wheel. Sustained high temperature can cause the material of the tire
to degenerate and reduce tire life, and excessive temperature can lead to
sudden tire failure. The grade C corresponds to a level of performance
which all passenger car tires must meet under the Federal Motor Vehicle
Safety Standard No. 109. Grades B and A represent higher levels of
performance on the laboratory test wheel than the minimum required by
law.
The temperature grade for this tire is established for a tire that
is properly inflated and not overloaded. Excessive speed,
underinflation, or excessive loading, either separately or in
combination, can cause heat buildup and possible tire failure.
2005 F250/350/450/550 (f23)
Owners Guide (post-2002-fmt)
USA_English (fus) Tires, Wheels and Loading
131
Fuse/Relay
Location Fuse Amp
Rating Passenger Compartment Fuse
Panel Description
15 — Not used
16 — Not used
17 15A* Exterior lamps
18 20A* Flasher, Brake On-Off (BOO)
lamps
19 10A* Body Security Module (BSM)
(Security)
20 15A* Trailer tow Electric Brake
Controller (EBC)
21 20A* Heated seats
22 20A* Engine control
23 20A* Engine control (gasoline engine
only)/Climate control (Diesel
engine only)
24 15A* Tow haul, Blower relay, Electronic
Automatic Temperature Control
(EATC)
25 — Not used
26 10A* Air bags
27 15A* Ignition switch RUN feed
28 10A* Trailer tow EBC logic
29 10A* Customer access
30 15A* High beam headlamps
31 15A* 4x4
32 5A* Radio (start)
33 15A* Cluster, 4x4, Wipers
34 10A* BOO switch (Low current)
35 10A* Instrument cluster
36 — Not used
37 15A* Horn
38 20A* Trailer tow park lamps
39 15A* Heated mirrors
2005 F250/350/450/550 (f23)
Owners Guide (post-2002-fmt)
USA_English (fus) Roadside Emergencies
219
washing ....................................240
waxing .....................................240
wheels ......................................241
wiper blades ............................243
Climate control (see Air
conditioning or Heating) ............36
Clutch
fluid ..........................................274
operation while driving ..........191
recommended shift speeds ....191
Compass, electronic
set zone adjustment .................70
Console ........................................66
overhead ....................................56
Controls
steering column ........................65
Coolant
checking and adding ..............257
refill capacities ................261, 283
specifications ..................286, 289
Cruise control
(see Speed control) ....................62
Customer Assistance ................213
Ford accessories for your
vehicle .....................................246
Ford Extended Service
Plan ..........................................237
Getting assistance outside
the U.S. and Canada ..............238
Getting roadside assistance ...213
Getting the service you
need .........................................231
Ordering additional owner’s
literature .................................238
The Dispute Settlement
Board .......................................234
Utilizing the
Mediation/Arbitration
Program ...................................236 D
Daytime running lamps
(see Lamps) ................................40
Dipstick
automatic transmission
fluid ..........................................275
engine oil .................................251
Doors
lubricant specifications ..........286
Driveline universal joint and
slip yoke ....................................279
Driving under special
conditions ..................190, 203, 207
sand .........................................205
snow and ice ...........................208
through water .................206, 209
E
Electronic message center ...66, 68
Emergencies, roadside
jump-starting ..........................224
Emergency Flashers .................214
Emission control system ..........271
Engine ........................................289
cleaning ...................................241
coolant .....................................257
diesel ...........................................7
fail-safe coolant ......................262
idle speed control ...................255
lubrication specifications ......286,
289
refill capacities ........................283
service points ..................249–250
starting after a collision .........214
Engine block heater .................182
Engine oil ..................................251
checking and adding ..............251
2005 F250/350/450/550 (f23)
Owners Guide (post-2002-fmt)
USA_English (fus) Index
303
