User Manual - Page 194

For F-450 2020.

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E139202
A
2. Insert the fuel pump nozzle up to the
first notch on the nozzle A. Keep it
resting on the cover of the fuel tank
filler pipe opening.
E139203
A
B
3. Hold the fuel pump nozzle in the lower
position B when refueling. Holding the
fuel pump nozzle in the higher position
A may affect the flow of fuel and shut
off the fuel pump nozzle before the fuel
tank is full.
E119081
4. Slightly raise the fuel pump nozzle and
then slowly remove it.
5. Replace the fuel tank filler cap and
close the fuel tank filler door.
Note: Do not attempt to start the engine if
you have filled the fuel tank with incorrect
fuel. Incorrect fuel use can cause damage
not covered by the vehicle warranty. Have
your vehicle checked immediately.
Dual Fuel Tanks (If Equipped)
Your vehicle may have a dual fuel tank
delivery system which operates
independently and automatically. The fuel
pump in the front fuel tank delivers fuel to
the engine. When the fuel level in the front
fuel tank drops below three quarter full,
fuel automatically transfers from the rear
fuel tank to the front fuel tank. Whenever
there is fuel in the rear fuel tank, the front
fuel tank level remains between half and
three quarter full.
Note: If your vehicle runs out of fuel, you
must add fuel to the front fuel tank to
restart the engine.
191
Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 201909, First-Printing
Fuel and Refueling
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