2010 FORD F550 engine

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Page 370 of 408

FORD F550 2010  Owners Manual How fail-safe cooling works
If the engine begins to overheat:
• The engine coolant temperature gauge will move to the red (hot)
area.
• The message center will indicate the engine is overheating.

Page 372 of 408

FORD F550 2010  Owners Manual Observe the following guidelines when handling automotive fuel:
• Extinguish all smoking materials
and any open flames before
refueling your vehicle.
• Always turn off the vehicle before
refueling

Page 373 of 408

FORD F550 2010  Owners Manual Refueling
WARNING: Fuel vapor burns violently and a fuel fire can cause
severe injuries. To help avoid injuries to you and others:
• Read and follow all the instructions on the pump island;
• Turn

Page 375 of 408

FORD F550 2010  Owners Manual Octane recommendations
Your vehicle is designed to use
“Regular” unleaded gasoline with a
pump (R+M)/2 octane rating of 87.
Some stations offer fuels posted as
“Regular” with an octane rating

Page 376 of 408

FORD F550 2010  Owners Manual If you have run out of fuel:
• You may need to cycle the ignition from off to on several times after
refueling to allow the fuel system to pump the fuel from the tank to
the engine. On restarting, c

Page 378 of 408

FORD F550 2010  Owners Manual • Idling for long periods of time (greater than one minute) may waste
fuel.
• Anticipate stopping; slowing down may eliminate the need to stop.
• Sudden or hard accelerations may reduce fuel eco

Page 380 of 408

FORD F550 2010  Owners Manual WARNING: Do not park, idle, or drive your vehicle in dry grass
or other dry ground cover. The emission system heats up the
engine compartment and exhaust system, which can start a fire.
Illumination o

Page 381 of 408

FORD F550 2010  Owners Manual 3. The fuel cap may not have been securely tightened. See Fuel filler
cap in this chapter.
4. Driving through deep water—the electrical system may be wet.
These temporary malfunctions can be correct