FORD 2011 Crown Victoria v.2 - Manual (Page 275)

WHEELS/TIRES/BRAKES
Wheel rims - police
To withstand the demands placed on vehicles driven under heavy duty
service conditions, Ford Motor Company installs heavy duty steel wheels.
Tires - police
Tires (including the spare) are speed-rated radials for police use. Use
only the recommended tire size and speed ratings.
In regions with snow and ice during the winter months, installation of
snow tires may be desirable. Snow tires will usually exhibit a drop in dry
pavement handling, but many show an increase in snow and ice traction.
When snow tires are used, they should be installed on all four wheels,
never on the drive wheels only.
Tires - long term storage
Most high performance tires are made with a nylon overlay.
As such, the following steps should be taken to avoid flatspotting when
the vehicles are not used for a period of time.
• Fleets should store the vehicles with 44 psi (303 kPa) in the tires.
• If the vehicle is stored for periods longer than 30 days, it should be
moved several feet at least once during each 30-day period, so that a
different portion of the tread contacts the ground.
• Tire pressure should be reduced to the recommended pressure shown
on the vehicle certification label before the vehicle is placed back into
service.
Training the tire pressure monitoring system (TPMS)
All Crown Victorias are equipped
with a tire pressure monitoring
system (TPMS) that illuminates a
low tire pressure warning light on
the instrument cluster when one or
more of your tires is significantly under-inflated.
Crown Victoria Severe Duty
275
2011 Crown Victoria (cro)
Owners Guide, 2nd Printing
USA (fus)