2021 FORD F650/750 Owners Manual

Page 97 of 390

FORD F650/750 2021  Owners Manual III (start) - Cranks the engine.
STARTING A GASOLINE
ENGINE
 (IF EQUIPPED)
When you start the engine, the idle speed
increases, this helps to warm up the
engine. If the engine idle speed does not
slow

Page 98 of 390

FORD F650/750 2021  Owners Manual Important Ventilating Information
If you stop your vehicle and then leave the
engine idling for long periods of time, we
recommend that you do one of the
following:
•
Open the windows at least 1 in

Page 99 of 390

FORD F650/750 2021  Owners Manual Your vehicle may be equipped with a cold
weather starting strategy that prevents
severe engine damage by assisting in
engine lubrication warm-up. In extremely
cold ambient temperatures, this strategy

Page 100 of 390

FORD F650/750 2021  Owners Manual •
Shortly after the engine has shut down,
the electrical system simulates a key
off and even though the ignition is still
on, the electrical system simulates a
normal accessory delay period before
s

Page 101 of 390

FORD F650/750 2021  Owners Manual The heater uses 0.4 to 1.0 kilowatt-hours
of energy per hour of use. The system does
not have a thermostat. It achieves
maximum temperature after
approximately three hours of operation.
Using the heat

Page 102 of 390

FORD F650/750 2021  Owners Manual SAFETY PRECAUTIONS
WARNING: Do not overfill the fuel
tank. The pressure in an overfilled tank
may cause leakage and lead to fuel spray
and fire. WARNING: 
The fuel system may
be under pressure. If you

Page 103 of 390

FORD F650/750 2021  Owners Manual personal injury or sickness may result.
If you splash fuel on your skin, promptly
wash your skin thoroughly with soap
and water. Consult a physician
immediately if you experience an
adverse reaction.

Page 104 of 390

FORD F650/750 2021  Owners Manual We recommend the use of Top Tier Diesel
fuel where available to help minimize
engine deposits and maintain optimal
vehicle and engine performance. Look for
the Top Tier logo at the station.   For
addi