Honda 2002 NSX Owner's Manual page 213

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Tires
Use a gauge to measure the air
pressure at least once a month. Even
tires that are in good condition may
lose one to two psi (10 to 20 kPa, 0.1
to 0.2 kgf/cm ) per month.
Remember to check the spare tire at
the same time you check all the
other tires.
Check the pressure in the tires when
they are cold. This means the car
has been parked for at least three
hours. If you have to drive the car
before checking the tire pressure,
the tires can still be considered
''cold'' if you drive less than 1 mile
(1.6 km).
210
Maintenance
If you check the pressure when the
tires are hot (the car has been driven
several miles), you will see readings
4 to 6 psi (30 to 40 kPa, 0.3 to 0.4
kgf/cm ) higher than the cold
reading. This is normal. Do not let
air out to match the specified cold
pressure. The tire will be
underinflated.
Use the pressure gauge that came
with your car every time you check
the tires. This will make it easier for
you to tell if a pressure loss is due to
a tire problem and not due to a
variation between gauges.
Recommended Tire Pressures for
Normal Driving
The following chart shows the
recommended cold tire pressures for
most normal driving conditions and
speeds. Tire pressures for high
speed driving are the same as for
normal driving.
Front:
Tire Size Cold Tire Pressure
for Normal Driving
215/40R17 83Y 33 psi (230 kPa , 2.3
kgf/cm )
Rear:
Cold Tire Pressure
Tire Size
for Normal Driving
255/40R17 94Y 40 psi (275 kPa , 2.8
kgf/cm )
The folding spare tire pressure is:
Front:
26 psi (180 kPa , 1.8 kgf/cm )
Rear:
32 psi (220 kPa , 2.2 kgf/cm )
These pressures are also given on
the tire information label on the
driver's doorjamb.