FORD 2002 Crown Victoria v.1 - Manual (Page 226)

Tire rotation
Because your vehicle’s tires perform different jobs, they often wear
differently. To make sure your tires wear evenly and last longer, rotate
them as indicated in the scheduled maintenance guide. If you notice that
the tires wear unevenly, have them checked.
• Four tire rotation (for vehicles
with aluminum wheels)
• Five tire rotation (for vehicles
with steel wheels and full size
spare tires)
Maintenance and Specifications
226