Ford 2002 Explorer Manual page 153

Maintenance and Specifications
FFV engine (if equipped)
Flexible fuel vehicle (FFV) fuel tanks may contain 0 to 85 percent or
more of ethnanol. Any fuel blends containing gasoline and ethanol should
be treated the same as "Fuel Ethanol (E85)." To identify if your vehicle
is an FFV, check your VIN or the label on the inside of your fuel filler
door. When checking your VIN, the engine type identifier (8th character)
is "K."
If you have a flex fuel vehicle, use only UNLEADED FUEL and
ETHANOL (E85).
Note: Flexible fuel components and standard unleaded fuel components
are NOT interchangeable. If your vehicle is not serviced in accordance
with flexible fuel vehicle procedures, damage may occur and your
warranty may be invalidated.
U.S. government regulations require fuel ethanol dispensing
pumps to have a small, square, orange and black label with the
common abbreviation E85 or the appropriate percentage for that
region. Use of other fuels such as Fuel Methanol may cause power
train damage, a loss of vehicle performance, and your warranty
may be invalidated.
Fuel quality
The World-wide Fuel Charter
recommends gasoline specifications
to provide improved performance
and emission control system
protection. Ask your fuel supplier
about gasolines that meet the
World-wide Fuel Charter. In Canada,
look for fuels that display the Auto
Makers' Choice logo.
It should not be necessary to add
any aftermarket products to your
fuel tank if you use high quality fuel of the recommended octane rating.
Aftermarket products could cause damage to the fuel system and
invalidate your warranty.
Cleaner air
Ford endorses the use of reformulated "cleaner-burning" gasolines to
improve air quality.
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