Glossary Of Tire Terminology - Subaru 2005 Legacy Owner's Manual

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Measuring and adjusting air pressure to
!
achieve proper inflation
Check and, if necessary, adjust the pressure of
each tire (including the spare) at least once a
month and before any long journey. Check the
tire pressures when the tires are cold. Use a
pressure gauge to adjust the tire pressures to the
specific values. Driving even a short distance
warms up the tires and increases the tire pres-
sures. Also, the tire pressures are affected by the
outside temperature. It is best to check tire pres-
sure outdoors before driving the vehicle. When a
tire becomes warm, the air inside it expands,
causing the tire pressure to increase. Be careful
not to mistakenly release air from a warm tire to
reduce its pressure.

! Glossary of tire terminology

Cold tire pressure
"
The pressure in a tire that has been driven less
than 1 mile or has been standing for three hours
or more.
Maximum inflation pressure
"
13-8
The maximum cold inflation pressure to which a
tire may be inflated.
Recommended inflation pressure
"
The cold inflation pressure recommended by a
vehicle manufacturer.
Intended outboard sidewall
"
1)The sidewall that contains a whitewall, bears
white lettering or bears manufacturer, brand,
and/or model name molding that is higher or
deeper than the same molding on the other
sidewall of the tire, or
2)The outward facing sidewall of an asymmet-
rical tire that has a particular side that must al-
ways face outward when mounting on a vehi-
cle.
Accessory weight
"
The combined weight (in excess of those stan-
dard items which may be replaced) of floor mats,
leather seats and cross bars to the extent that
these items are available as factory-installed
equipment (whether installed or not).
Curb weight
"
The weight of a motor vehicle with standard
equipment including the maximum capacity of fu-
el, oil, and coolant and air conditioning.