2018 FORD F-650/750 Owners Manual

Page 97 of 386

FORD F-650/750 2018  Owners Manual Note:
Do not blend used engine oil with
diesel fuel under any circumstances.
Blending used oil with the fuel will
significantly increase your vehicle ’s exhaust
emissions and reduce engine life due

Page 98 of 386

FORD F-650/750 2018  Owners Manual Biodiesel fuel is a chemically converted
product from renewable fuel sources, such
as vegetable oils, animal fats and waste
cooking greases.
To help achieve acceptable engine
performance and durabilit

Page 99 of 386

FORD F-650/750 2018  Owners Manual Do not use alcohol-based additives to
improve cetane quality, to prevent fuel
gelling or any other use. The use of alcohol
additives may result in damage to the fuel
injectors and system.  See Capacit

Page 100 of 386

FORD F-650/750 2018  Owners Manual If your vehicle runs out of fuel:
•
Normally adding 4–5 gal (15– 19 L) of
fuel is enough to restart the engine. If
your vehicle is out of fuel and on a
steep grade, more than 
5 gal (19 L)
may b

Page 101 of 386

FORD F-650/750 2018  Owners Manual Fuel Filler Cap
WARNINGS
The fuel system may be under
pressure. If you hear a hissing sound
near the fuel filler inlet, do not refuel
until the sound stops. Otherwise, fuel may
spray out, which could

Page 102 of 386

FORD F-650/750 2018  Owners Manual WARNINGS
Keep children away from the fuel
pump; never let children pump fuel.
Wait at least 10 seconds before
removing the fuel pump nozzle to
allow any residual fuel to drain into
the fuel tank. Stop

Page 103 of 386

FORD F-650/750 2018  Owners Manual •
The usable capacity of the fuel tank is
the amount of fuel that can be added
into the tank after the gauge indicates
empty.
• The advertised capacity is the total fuel
tank size.  See Capacities

Page 104 of 386

FORD F-650/750 2018  Owners Manual •
Transmissions give their best fuel
economy when operated in the top
cruise gear and with steady pressure
on the accelerator pedal.
• Close the windows for high-speed
driving.
FUEL TANK SELECTOR