Ford F-650 2011 Supplement Manual page 200

Maintenance and Specifications
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 any aftermarket additives to your fuel
tank if you use a properly formulated diesel fuel that meets ASTM D 975
specification. Aftermarket additives can damage the injector system or
engine. Repairs to correct the effects of using an aftermarket product in
your fuel may not be covered by your warranty.
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 to increased
internal wear.
Many of the world's automakers approved the World-wide Fuel Charter
that recommends diesel fuel specifications to provide improved
performance and emission control system protection for your vehicle.
Diesel fuel that meet the World-wide Fuel Charter should be used when
available. Ask your fuel supplier about fuel that meet the World-Wide
Fuel Charter.
Running out of fuel
Avoid running out of fuel as this will allow air to enter the fuel system,
which will make restarting the vehicle difficult.
If you have run out of fuel:
• If your vehicle is equipped with dual fuel tanks, add at least
4–5 gallons (15–19 liters) of fuel to each tank before attempting to
restart the engine.
• The fuel system must be primed before attempting to restart the
engine. Refer to the engine operator's manual for instructions on
priming the engine.
• Use caution not to overheat and damage the starter by cranking
the engine for an excessive period of time. You may need to crank the
engine for a longer time than normal. If the engine fails to start in
30 seconds, turn the ignition to the off position and wait for two
minutes before cranking the engine again.
• Any remaining trapped air will self-purge from the fuel system once
the engine starts running.
200
2011 F-650/750 (f67)
Supplement, 2nd Printing
USA (fus)