Subaru 2007 Impreza WRX User Manual download pdf (Page 307)

Black plate (315,1)

北米Model "A1920BE-B" EDITED: 2006/ 9/ 19

possible. Also, make sure the tires are

not pressed against the curb when you

park the vehicle.

. If you feel unusual vibration while

driving or find it difficult to steer the

vehicle in a straight line, one of the

tires and/or wheels may be damaged.

Drive slowly to the nearest authorized

SUBARU dealer and have the vehicle

inspected.

& 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

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.

NOTE

. The air pressure in a tire increases

by approximately 4.3 psi (30 kPa, 0.3

kgf/cm

2

) 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).

WARNING

Do not let air out of warm tires to

adjust pressure. Doing so will result

in low tire pressure.

Incorrect tire pressures detract from con-

trollability and ride comfort, and they

cause the tires to wear abnormally.

Maintenance and service 11-31

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