2002 SUBARU IMPREZA WRX tire pressure

In case of emergency
9-3
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Temporary spare tire (if equipped)
WARNING
Never tow a trailer when the temporary spare tire is used. The temporary spare tire is not
designed to sustain the towing load. Use ofthe temporary spare tire when towing canresult in failure of the spare tire and/or less
stability of the vehicle and may lead to an accident.
The temporary spare tire is smaller and lighter than
a conventional tire and is designed for emergency
use only. Remove the temporary spare tire and re-
install the conventional tire as soon as possible be-
cause the spare tire is designed only for temporary use.
Check the inflation pressure of the temporary spare
tire periodically to keep the tire ready for use. The
correct pressure is 60 psi (4.2 kg/cm2
, 420 kPa) .
When using the temporary spare tire, note the fol-lowing:
Do not exceed 50 mph (80 km/h).
Do not put a tire chain on the temporary spare tire.
Because of the smaller tire size, a tire chain will not
fit properly. Do not use two or more temporary spare tires at
the same time. Do not drive over obstacles. This tire has a smaller
diameter, so road clearance is reduced.
HG0106
1) Tread wear indicator bar
2) Indicator location mark
When the wear indicator appears on the tread, re-
place the tire.

11
11-1
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Maintenance schedule 11-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance precautions 11-3 . . . . . . . . . . . . . . . . . . . . . . . .
Engine hood 11-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine compartment overview 11-7 . . . . . . . . . . . . . . . . .
2.5 liter model 11-7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.0 liter (Turbo) model 11-8 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine oil 11-9
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking the oil level 11-9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Changing the oil and oil filter 11-10 . . . . . . . . . . . . . . . . . . .
Recommended grade and viscosity 11-11 . . . . . . . . . . .
Recommended grade and viscosity under
severe driving conditions 11-13 . . . . . . . . . . . . . . . . . . . . . .
Cooling system 11-13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Hose and connections 11-14 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine coolant 11-14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Air cleaner element 11-18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacing the air cleaner element 11-18 . . . . . . . . . . . . . .
Spark plugs 11-21 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Recommended spark plugs 11-21 . . . . . . . . . . . . . . . . . . . . .
Drive belts 11-22 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Manual transmission oil 11-23 . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking the oil level 11-23 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Recommended grade and viscosity 11-24 . . . . . . . . . . .
Automatic transmission fluid 11-24 . . . . . . . . . . . . . . . . . . .
Checking the fluid level 11-24 . . . . . . . . . . . . . . . . . . . . . . . . . .
Recommended fluid 11-25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Front differential gear oil (AT vehicles) 11-26 . . . . . Checking the oil level 11-26
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Recommended grade and viscosity 11-26 . . . . . . . . . . .
Rear differential gear oil 11-27 . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking the gear oil level 11-27 . . . . . . . . . . . . . . . . . . . . . . .
Recommended grade and viscosity 11-28 . . . . . . . . . . .
Power steering fluid 11-29 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking the fluid level 11-29 . . . . . . . . . . . . . . . . . . . . . . . . . .
Recommended fluid 11-30 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brake fluid 11-30 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking the fluid level 11-30 . . . . . . . . . . . . . . . . . . . . . . . . . .
Recommended brake fluid 11-31 . . . . . . . . . . . . . . . . . . . . . . .
Clutch fluid (MT vehicles) 11-31 . . . . . . . . . . . . . . . . . . . . . . . .
Checking the fluid level 11-31 . . . . . . . . . . . . . . . . . . . . . . . . . .
Recommended clutch fluid 11-32 . . . . . . . . . . . . . . . . . . . . . .
Brake booster 11-33 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brake pedal 11-33 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking the brake pedal free play 11-33 . . . . . . . . . . . .
Checking the brake pedal reserve distance 11-34 . .
Clutch pedal (MT vehicles) 11-34 . . . . . . . . . . . . . . . . . . . . . .
Checking the clutch function 11-34 . . . . . . . . . . . . . . . . . . . .
Checking the clutch pedal free play 11-35 . . . . . . . . . . .
Replacement of brake pad and lining 11-35 . . . . . . . .
Breaking-in of new brake pads and linings 11-36 . . .
Parking brake stroke 11-37 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tires and wheels 11-37 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Types of tires 11-37 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tire inspection 11-38 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tire pressures and wear 11-38 . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance and service

Maintenance and service
11-38
ered and icy roads. However winter tires do not
have adequate performance compared with sum-
mer tires and all season tires on roads other than
snow-covered and icy roads. Tire inspection
Check on a daily basis that the tires are free from serious damage, nails, and stones. At the same
time, check the tires for abnormal wear.
Contact your SUBARU dealer immediately if you find
any problem. NOTE When the wheels and tires strike curbs or are
subjected to harsh treatment as when the vehicle is driven on a rough surface, they can suffer
damage that cannot be seen with the naked eye.This type of damage does not become evident
until time has passed. Try not to drive over
curbs, potholes or other rough surface. If doingso is unavoidable, keep the vehicle ’s speed
down to a walking pace or less, and approach
the curbs as squarely as possible. Also, makesure the tires are not pressed against the curbswhen 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 dam-aged. Drive slowly to the nearest authorized
SUBARU dealer and have the vehicle inspected.
Tire pressures and wear
Maintaining the correct tire pressures helps to maxi-
mize the tires ’ service lives and is essential for good
running performance. Check and, if necessary, ad-
just 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 plac-
ard is located on the door pillar on the driver ’s side.
HB0382

Maintenance and service
11-39
– CONTINUED –
Driving even a short distance warms up the tires
and increases the tire pressures. Also, the tire pres-
sures are affected by the ambient temperature. It is
best to check tire pressure outdoors before drivingthe vehicle.
When a tire becomes warm, the air inside it ex-
pands, 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 approxi-
mately 4.3 psi (30 kPa, 0.3 kg/cm 2
) when the tire
becomes warm. The tires are considered cold when the vehicle
has been parked for at least three hours or hasbeen driven less than one mile (1.6 km).
WARNING
Do not let air out of warm tires to adjust
pressrue. Doing so will result in low tire pres-sure.
Incorrect tire pressures detract from controllability
and ride comfort, and they cause the tires to wear
abnormally.
Correct tire pressure (tread worn evenly)
HGB033AA
Roadholding is good, and steering is responsive.
Rolling resistance is low, so fuel consumption is
also lower.

Maintenance and service
11-40
Abnormally low tire pressure (tread worn at
shoulders)
HGB024AA
Rolling resistance is high, so fuel consumption is
also higher.
Abnormally high tire pressure (tread worn in
center)
HGB025AA
Ride comfort is poor. Also, the tire magnifies the
effects of road-surface bumps and dips, possibly
resulting in vehicle damage.
If the tire placard shows tire pressures for the ve-
hicle when fully loaded and for the vehicle when
towing a trailer, adjust the tire pressures to the val-
ues that match current loading conditions.
WARNING
Driving at high speeds with excessively low tire pressures can cause the tires to deform
severely and to rapidly become hot. A sharp

Maintenance and service
11-42
WARNING
When a tire’s tread wear indicator becomes
visible, the tire is worn beyond the acceptable
limit and must be replaced immediately. With atire in this condition, driving at high speeds in wet weather can cause the vehicle to hydro- plane. The resulting loss of vehicle controlcan lead to an accident.
NOTE
For safety, inspect tire tread regularly and re-
place the tires before their tread wear indicators
become visible.
Tire rotation
OM-H0230
Tire wear varies from wheel to wheel. To maximize
the life of each tire and ensure that the tires wear
uniformly, it is best to rotate the tires every 7,500
miles (12,500 km). Rotating the tires involves switch-
ing the front and rear tires on the right-hand side of
the vehicle and similarly switching the front and rear
tires on the left-hand side of the vehicle. (Each tiremust be kept on its original side of the vehicle.)
Replace any damaged or unevenly worn tire at the
time of rotation. After tire rotation, adjust the tire
pressures and make sure the wheel nuts are cor-
rectly tightened.
After driving approximately 600 miles (1,000 km),

Specifications
12-5
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Tires
Tire size
195/60R15 88HP205/55R16 89V215/45R17 87W
Wheel size15 × 6 JJ16 × 6 1
/2 JJ17
× 7 JJ
PressureFront32 psi (220 kPa, 2.2 kg/cm 2
)33 psi
(230 kPa, 2.3 kg/cm 2
)
Rear29 psi (200 kPa, 2.0 kg/cm 2
)32 psi
(220 kPa, 2.2 kg/cm 2
)
Temporary spare tireSizeT135/70 D16
Pressure60 psi (420 kPa, 4.2 kg/cm 2
)
Wheel alignment
Item
SedanWagon
2.5-liter non-turbo2.0-liter turbo2.5-liter non-turbo2.0-liter turbo
RSWRXTSOUTBACK SPORTWRX
Drive systemAWD
To eFront0 mm (0 in)
Rear0 mm (0 in)
CamberFront–0°15’–0 °25’–0 °10’–0 °05’–0 °20’
Rear–1 °25’–1 °30’–1 °15’–1 °10’–1 °20’

Specifications
12-10
Vehicle identification
HGD003BB
1) Vehicle identification number
2) Emission control label
3) Vacuum hose connectionslabel
4) Tire inflation pressure label
5) Certification plate
6) Bar cord label
7) Vehicle identification number
plate
8) Model number plate