FORD 1999 Mustang - Manual (Page 157)

When replacing full size tires, never mix
radial bias-belted, or bias-type tires. Use
only the tire sizes that are listed on the
Certification Label. Make sure that all tires are the
same size, speed rating, and load-carrying capacity.
Use only the tire combinations recommended on
the label. If you do not follow these precautions,
your vehicle may not drive properly and safely.
Make sure that all replacement tires are of
the same size, type, load-carrying capacity
and tread design (e.g., “All Terrain”, etc.), as
originally offered by Ford.
Failure to follow these precautions may
adversely affect the handling of the vehicle
and make it easier for the driver to lose control
and roll over.
Tires that are larger or smaller than your vehicle’s
original tires may also affect the accuracy of your
speedometer.
SNOW TIRES AND CHAINS
Driving too fast for conditions creates the
possibility of loss of vehicle control. Driving
at very high speeds for extended periods of time
may result in damage to vehicle components.
Snow tires must be the same size and grade
as the tires you currently have on your
vehicle.
Maintenance and care
157