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Tire pressures change by approximately 1 psi (7 kPa) per loading may be required for high-speed vehicle opera-
12° F (7° C) of air temperature change. Keep this in mind tion. Refer to original-equipment information, or an
when checking tire pressure inside a garage, especially in authorized tire dealer, for recommended safe operating
the Winter.
speeds, loading and cold tire inflation pressures.
Example: If garage temperature is 68°F (20°C) and the
outside temperature is 32°F (0°C), then the cold tire
inflation pressure should be increased by 3 psi (21 kPa),
which equals 1 psi (7 kPa) for every 12°F (7°C) for this
outside temperature condition.
WARNING!
High-speed driving, with your vehicle at or above
maximum load, is dangerous. The added strain on
your tires could cause them to fail. You could have a
serious accident. Do not drive a vehicle loaded to the
maximum capacity at continuous speeds above
75 mph (120 km/h).
Tire pressure may increase from 2 to 6 psi (13 to 40 kPa)
during operation. Do not reduce this normal pressure
buildup or your tire pressure will be too low.
Tire Pressures for High-Speed Operation
The manufacturer advocates driving at safe speeds
within posted speed limits. Where speed limits or condi-
tions are such that the vehicle can be driven at high
speeds, maintaining correct tire inflation pressure is very
important. Increased tire pressure and reduced vehicle
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Radial-Ply Tires
WARNING!
WARNING!
•
•
Temporary-use spare tires are for emergency use
only. With these tires, do not drive faster than
50 mph (80 km/h).
Combining radial ply tires with other types of tires
on your vehicle will cause your vehicle to handle
poorly. The instability could cause an accident. Al-
ways use radial ply tires in sets of four. Never
combine them with other types of tires.
Temporary-use spare tires have limited tread life.
When the tread is worn to the tread wear indica-
tors, the temporary use spare tire needs to be
replaced.
•
Be sure to follow the warnings that apply to your
spare. Failure to do so could result in spare tire
failure and loss of vehicle control.
Cuts and punctures in radial tires are repairable only in
the tread area because of sidewall flexing. Consult your
authorized tire dealer for radial tire repairs.
Compact Spare Tire
Do not install a wheel cover or attempt to mount a
conventional tire on the compact spare wheel, since the
wheel is designed specifically for the compact spare.
The compact spare is for temporary emergency use with
radial tires. It is engineered to be used on your style
vehicle only. Since this tire has limited tread life, the
original tire should be repaired (or replaced) and rein-
stalled at the first opportunity.
Do not install more than one compact spare tire/wheel
on the vehicle at any given time.
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