Tire Pressures For High Speed Operation; Radial Ply Tires; All Season Tires - If Equipped - Jeep 2013 Wrangler Owner's Manual

after the vehicle has not been driven for at least
three hours, or driven less than 1 mile (1.6 km)
after a three-hour period. The cold tire inflation
pressure must not exceed the maximum infla-
tion pressure molded into the tire side wall.
Check tire pressures more often if subject to a
wide range of outdoor temperatures, as tire
pressures vary with temperature changes.
Tire pressures change by approximately 1 psi (7
kPa) per 12° F (7° C) of air temperature change.
Keep this in mind when checking tire pressure
inside a garage, especially in the Winter.
Example: If garage temperature = 68° F (20° C)
and the outside temperature = 32° F (0° C) then
the cold tire inflation pressure should be in-
creased by 3 psi (21 kPa), which equals 1 psi (7
kPa) for every 12° F (7° C) for this outside
temperature condition.
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 pres-
sure will be too low.
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Tire Pressures For High Speed
Operation
The manufacturer advocates driving at safe
speeds within posted speed limits. Where
speed limits or conditions are such that the
vehicle can be driven at high speeds, maintain-
ing correct tire inflation pressure is very impor-
tant. Increased tire pressure and reduced ve-
hicle loading may be required for high-speed
vehicle operation. Refer to original equipment
or an authorized tire dealer for recommended
safe operating speeds, loading and cold tire
inflation pressures.
WARNING!
High speed driving with your vehicle under
maximum load is dangerous. The added
strain on your tires could cause them to fail.
You could have a serious collision. Do not
drive a vehicle loaded to the maximum ca-
pacity at continuous speeds above 75 mph
(120 km/h).

Radial Ply Tires

WARNING!
Combining radial ply tires with other types of
tires on your vehicle will cause your vehicle
to handle poorly. The instability could cause
a collision. Always use radial ply tires in sets
of four. Never combine them with other types
of tires.
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.
All Season Tires – If Equipped
All Season tires provide traction for all seasons
(spring, summer, fall and winter). Traction levels
may vary between different all season tires. All
season tires can be identified by the M+S, M&S,
M/S or MS designation on the tire sidewall. Use
all season tires only in sets of four; failure to do
so may adversely affect the safety and handling
of your vehicle.
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