Ford 2003 Mustang Owner's Manual page 154

Maintenance and care
temperature gauge indicator will be near the center
of the normal area between H and C).
2. While the engine idles, turn the steering wheel
left and right several times.
3. Turn the engine off.
Perform steps 4 and 5 following the procedure for
your engine.
3.0L V6 Vulcan engine
4. Check the fluid level
on the dipstick. It
should be between the
arrows in the FULL
HOT range. Do not add
fluid if the level is
within this range.
5. If the fluid is low, add fluid in small amounts,
continuously checking the level until it reaches the
FULL HOT range. Be sure to put the dipstick back
in the reservoir.
3.0L Duratec engine and 3.4L SHO engine
4. Check the fluid level
in the reservoir. It
should be between the
MIN and MAX lines. Do
not add fluid if the
level is within this
range.
5. If the fluid is low, add fluid in small amounts,
continuously checking the level until it reaches the
range between the MIN and MAX lines. Be sure to
put the cap back on the reservoir.
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