Warning display Status
Low tire pressure (if equipped) Warning can be cleared by pressing
the RESET button. Warning can
reappear if the condition is still
present. Warning will reappear on the
next ignition key-cycle if the condition
still exists. Tire Monitor Fault (if
equipped)
Tire Sensor Fault (if equipped)
Check air filter (diesel engine
only)
Drain water separator (diesel
engine only)
Stop safely now (diesel engine
only)
Engine warming please wait
xx(diesel engine only)
OK to drive (diesel engine
only)
Engine turns off in xx (diesel
engine only)
Engine turned off (diesel
engine only)
Drive to clean exhaust system
(diesel engine only)
Cleaning exhaust filter (diesel
engine only)
Exhaust filter drive complete
(diesel engine only)
Oil change required/Engine oil
change soon (diesel engine
only)
Oil life ok (diesel engine only)
PARK BRAKE ENGAGEDDisplayed when the parking brake is applied
(or not fully released).
2008 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Driver Controls
125
ProCarManuals.com
If the battery has been disconnected or a new battery has been installed,
the clock and the preset radio stations must be reset once the battery is
reconnected.
•Always dispose of automotive
batteries in a responsible manner.
Follow your local authorized
standards for disposal. Call your
local authorized recycling center
to find out more about recycling
automotive batteries.
ENGINE COOLANT
Checking engine coolant
The concentration and level of engine coolant should be checked at the
mileage (kilometer) intervals listed in thescheduled maintenance
information. The coolant concentration should be maintained at 50/50
coolant and distilled water, which equates to a freeze point of -34°F
(-36°C). Coolant concentration testing is possible with a hydrometer or
antifreeze tester (such as the Rotunda Battery and Antifreeze Tester,
014–R1060). The level of coolant should be maintained at the “COLD
FILL RANGE” in the coolant reservoir. If the level falls below, add
coolant per the instructions in theAdding engine coolantsection.
Your vehicle was factory-filled with a 50/50 engine coolant and water
concentration. If the concentration of coolant falls below 40% or above
60%, the engine parts could become damaged or not work properly.A
50/50 mixture of coolant and water provides the following:
•Freeze protection down to -34°F (-36°C).
•Boiling protection up to 265°F (129°C).
•Protection against rust and other forms of corrosion.
•Enables calibrated gauges to work properly.
LEAD
RETURN
RECYCLE
2008 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Maintenance and Specifications
356
ProCarManuals.com
