Tire Pressures And Wear - Subaru 2007 Forester Owner's Manual

A8110BE.book 31 ページ ２００６年６月２３日 金曜日 午後１時３２分
park the vehicle.
If you feel unusual vibration while
driving or find it difficult to steer the ve-
hicle in a straight line, one of the tires
and/or wheels may be damaged. Drive
slowly to the nearest authorized SUBA-
RU dealer and have the vehicle in-
spected.

Tire pressures and wear

Maintaining the correct tire pressures
helps to maximize the tires' service lives
and is essential for good running perfor-
mance. Check and, if necessary, adjust
the pressure of each tire (including the
spare) at least once a month (for example,
during a fuel stop) 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 values shown on
the tire placard. The tire placard is located
on the door pillar on the driver's side.
Driving even a short distance warms up
the tires and increases the tire pressures.
Also, the tire pressures are affected by the
outside temperature. It is best to check tire
pressure outdoors before driving the vehi-
cle.
When a tire becomes warm, the air inside
it expands, causing the tire pressure to in-
crease. Be careful not to mistakenly re-
lease air from a warm tire to reduce its
pressure.
NOTE
The air pressure in a tire increases
by approximately 4.3 psi (30 kPa, 0.3
2
kgf/cm ) when the tire becomes warm.
The tires are considered cold when
the vehicle has been parked for at least
three hours or has been driven less
than one mile (1.6 km).
Do not let air out of warm tires to ad-
just pressure. Doing so will result in
800221
low tire pressure.
11-31
Maintenance and service
Incorrect tire pressures detract from con-
trollability and ride comfort, and they
cause the tires to wear abnormally.
Correct tire pressure (tread worn
evenly)
B00050
Roadholding is good, and steering is re-
sponsive. Rolling resistance is low, so fuel
consumption is also lower.
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