Checking Pressure when tires
are hot:
If pressures are checked after tires
have been driven for more than
three minutes or more than 1 mile,
(2 km) the tires become hot and
the pressures will increase by
approximately 4 psi (27.6 kPa).
Therefore when the tire pressure
is adjusted under these conditions,
it should be increased to a gauge
reading of 4 psi (27.6 kPa) greater
than the recommended cold
inflation pressure.
After inflating the tires while hot,
make sure to recheck tire pressure
later once the tires are cold.
For Example Only
33 psi (230
kPa)
Gauge reading
of hot tire
32 psi (220
kPa)
If recom-
mended, cold
inflation pres-
sure is
The hot tire pressure is only 1 psi
(10 kPa) greater than the
recommended cold inflation
pressure. Therefore, add 3 psi
(20 kPa) more to increase the
hot pressure to 4 psi (30 kPa)
over the recommended cold
inflation pressure.
36 psi (250
kPa)
New hot pres-
sure
INSPECTING THE TIRE FOR
WEAR
When the tread is worn down to
2/32 inch (1.6 mm), tires must be
replaced to help prevent your
vehicle from skidding and
hydroplaning. Built-in treadwear
indicators, or wear bars, which
look like narrow strips of smooth
rubber across the tread will
appear on the tire when the tread
is worn down to 2/32 inch (1.6
mm).
When the tire tread wears down
to the same height as these wear
bars, the tire is worn out and must
be replaced.
The tires should also be balanced
periodically. An unbalanced tire
and wheel assembly may result in
irregular tire wear.
397
Explorer (CTW) Canada/Mexico/United States of America, enUSA, Edition date: 202401, DOM
Tire Care