2009 FORD F750 Owners Manual

Page 185 of 276

FORD F750 2009 12.G Owners Manual Severe climates
If you drive in extremely cold climates (less than –34°F [–36°C]):
•It may be necessary to increase the coolant concentration
above 50%.
•NEVER increase the coolant concentra

Page 186 of 276

FORD F750 2009 12.G Owners Manual WARNING:Stay clear of the fan/fan area while the engine is
running or possible personal injury may occur.
FUEL FILTER/WATER SEPARATOR
WARNING:Do not drain water separator while engine is
running. Fuel

Page 187 of 276

FORD F750 2009 12.G Owners Manual •Extinguish all smoking materials
and any open flames before
fueling your vehicle.
•Always turn off the vehicle before
fueling.
•Automotive fuels can be harmful
or fatal if swallowed. If fuel is

Page 188 of 276

FORD F750 2009 12.G Owners Manual Number 1-D or winter blend number 2-D fuel is recommended at
temperatures below 20°F (-7°C) (seeCold weather operationin the
Drivingchapter. Diesel fuel containing no more than 5% biodiesel may
be u

Page 189 of 276

FORD F750 2009 12.G Owners Manual WARNING:Do not use starting fluid such as ether or gasoline.
Such fluids can cause immediate explosive damage to the engine
and possible personal injury.
Fuel quality
It should not be necessary to add

Page 190 of 276

FORD F750 2009 12.G Owners Manual •The engine may run rough and produce white smoke while air is in
the fuel system. This is normal and should stop after a short period of
time.
FUEL CONSUMPTION IMPROVEMENT MEASURES
There are two im

Page 191 of 276

FORD F750 2009 12.G Owners Manual Filling the tank
For consistent results:
•Use the same fill rate setting (low - medium - high) each time during
filling.
•Allow three automatic click-offs when filling.
•Always use fuel of a kno

Page 192 of 276

FORD F750 2009 12.G Owners Manual Habits
•Smooth, moderate operation can yield up to 10% savings in fuel.
•Steady speeds without stopping will usually give the best fuel
economy.
•Anticipate stopping; slowing down may eliminate