Choosing The Right Fuel - Ford Expedition 2008 Owner's Manual

At the next opportunity, safely pull off of the road, remove the fuel filler
cap, align the cap properly and reinstall it. The check fuel cap lamp
"check fuel cap" message may not reset immediately; it may take several
driving cycles for the check fuel cap lamp
message to turn off. A driving cycle consists of an engine start-up (after
four or more hours with the engine off) followed by city and highway
driving.
Continuing to drive with the check fuel cap lamp
message on may cause the
If you must replace the fuel filler cap, replace it with a fuel filler
cap that is designed for your vehicle. The customer warranty may
be void for any damage to the fuel tank or fuel system if the
correct genuine Ford or Motorcraft fuel filler cap is not used.
The fuel system may be under pressure. If the fuel filler cap is
venting vapor or if you hear a hissing sound, wait until it stops
before completely removing the fuel filler cap. Otherwise, fuel may
spray out and injure you or others.
If you do not use the proper fuel filler cap, excessive vacuum in
the fuel tank may damage the fuel system or cause the fuel cap
to disengage in a collision, which may result in personal injury.

Choosing the right fuel

Use only UNLEADED fuel or UNLEADED fuel blended with a maximum
of 10% ethanol. Your vehicle was not designed to run on E85 fuels that
are blended with a maximum of 85% ethanol. The use of leaded fuel is
prohibited by law and could damage your vehicle. Do not use fuel
containing methanol. It can damage critical fuel system components.
2008 Expedition (exd)
Owners Guide (post-2002-fmt)
USA (fus)
Maintenance and Specifications
or "check fuel cap"
lamp to turn on as well.
or
or "check fuel cap"
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