Ford 2003 Explorer Owner's Manual page 172

Maintenance and Specifications
To avoid static build-up:
• Place approved fuel container on the ground.
• DO NOT fill a container while it is in the vehicle.
• Keep the fuel pump nozzle in contact with the fuel container while
filling.
• DO NOT use a device that would hold the fuel pump handle in the fill
position.
Unleaded gasoline engines
• Use only unlead fuel.
• Use "Regular" unleaded gasoline
with an (R+M)/2 octane rating of
87.
• Do not use fuel containing
methanol.
• Do not use fuel or fuel additives with metal compounds.
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.
Running out of fuel
Running out of fuel may have an adverse affect on powertrain
components.
172
87
(R+M)/2 METHOD