2006 SUBARU IMPREZA oil

Maintenance and service 11-21
– CONTINUED –
Recommended fluid
Use one of the following types of automat-
ic transmission fluid.
Genuine Subaru Automatic Transmis-
sion Fluid Type-HP
IDEMITSU ATF HP
Castrol Transmax J
Pennzoil ATF-J*
* Available only in the USA (except
Alaska and Hawaii)
NOTE
Using any non-specified type of auto-
matic transmission fluid could result in
damage inside the transmission. When
replacing the automatic transmission
fluid, be sure to use a fluid of the types
specified above.
Front differential gear oil (AT
vehicles)
Checking the oil level
1) Yellow handle
1. Park the vehicle on a level surface and
stop the engine.
2. Pull out the dipstick, wipe it clean, and
insert it again.
1) Upper level
2) Lower level
3. Pull out the dipstick again and check
the oil level on it. If it is below the lower
level, add oil to bring the level up to the up-
per level.
1
B00472
Be careful not to spill front differen-
tial gear oil when adding it. If oil
touches the exhaust pipe, it may
cause a bad smell, smoke, and/or a
fire. If oil gets on the exhaust pipe,
be sure to wipe it off.
1 2
B00372

11-22 Maintenance and service
Recommended grade and
viscosity
Each oil manufacturer has its own base
oils and additives. Never use different
brands together.
Oil grade:
API classification GL-5
SAE viscosity No. and applicable tem-
perature
Rear differential gear oil
Checking the gear oil level
Your vehicle may be equipped with a rear
differential protector. The differential pro-
tector provides protection to the rear dif-
ferential assembly during off-road use.
Removal of the rear differential protector
is not required when checking the oil level.
1) Filler plug
2) Drain plug 1) Filler hole
2) Drain hole
3) Oil level
Remove the plug from the filler hole and
check the oil level. The oil level should be
kept even with the bottom of the filler hole.
If the oil level is below the bottom edge of
the hole, add oil through the filler hole to
raise the level.
-30 -20 -10 0 10 20 30 40
-20 0 60 20
80W
75W/90 80 100
40
85W 90
B00032
2 1B00373
3
1
2
B00434

Maintenance and service 11-23
Recommended grade and
viscosity
Each oil manufacturer has its own base
oils and additives. Never use different
brands together.
Oil grade:
API classification GL-5 SAE viscosity No. and applicable tem-
perature
Except STI version
SAE viscosity No. and applicable tem-
perature
STI version
Be careful not to spill rear differ-
ential gear oil when adding it. If
rear differential gear oil touches
the exhaust pipe, it may cause a
bad smell, smoke, and/or a fire. If
rear differential gear oil gets on
the exhaust pipe, be sure to wipe
it off.
If the vehicle requires frequent re-
filling, there may be an oil leak. If
you suspect a problem, have the
vehicle checked at your SUBARU
dealer.
-30 -20 -10 0 10 20 30 40
-20 0 60 20
80W
75W/90 80 100
40
85W 90
B00032
-30 -20 -10 0 10 20 30 40
-20 0 60 20 80 10040
90
B00159

11-24 Maintenance and service
Power steering fluid
Checking the fluid level
1) Reservoir tank
The power steering fluid expands greatly
as its temperature rises; the fluid level dif-
fers according to fluid temperature. There-
fore, the reservoir tank has two different
checking ranges for hot and cold fluids.
Check the power steering fluid level
monthly.
1. Park the vehicle on a level surface, and
stop the engine.
1) Specified range
2. Check the fluid level of the reservoir
tank.
When the fluid is hot after the vehicle has
been run: Check that the oil level is be-
tween “HOT MIN ” and “HOT MAX ” on the
surface of the reservoir tank.
When the fluid is cool before the vehicle is
run: Check that the oil level is between “ COLD MIN ” and “COLD MAX ” on the sur-
face of the reservoir tank.
3. If the fluid level is lower than the appli-
cable “MIN ” line, add the recommended
fluid as necessary to bring the level be-
tween the “MIN ” and “MAX ” line.
If the fluid level is extreme low, it may indi-
cate possible leakage. Consult your
SUBARU dealer for an inspection.
Recommended fluid
“ Dexron III ” Type Automatic Transmis-
sion Fluid
1
1
B00376
Be careful not to burn yourself be-
cause the fluid may be hot.
When power steering fluid is be-
ing added, use only clean fluid,
and be careful not to allow any dirt
into the tank. And never use dif-
ferent brands together.
Avoid spilling fluid when adding it
in the tank.
Be careful not to spill power steer-
ing fluid when adding it. If power
steering fluid touches the exhaust
pipe, it may cause a bad smell,
smoke, and/or a fire. If power
steering fluid gets on the exhaust
pipe, be sure to wipe it off.

Maintenance and service 11-35
Aluminum wheels
Aluminum wheels can be scratched and
damaged easily. Handle them carefully to
maintain their appearance, performance,
and safety.
When any of the wheels is removed and
replaced for tire rotation or to change a
flat, always check the tightness of the
wheel nuts after driving approximately 600
miles (1,000 km). If any nut is loose, tight-
en it to the specified torque.
Never apply oil to the threaded parts,
wheel nuts, or tapered surface of the
wheel.
Never let the wheel rub against sharp
protrusions or curbs.
Be sure to fit tire chains on uniformly
and completely around the tire, otherwise
the chains may scratch the wheel.
When wheel nuts, balance weights, or
the center cap is replaced, be sure to re-
place them with genuine SUBARU parts
designed for aluminum wheels.
Intercooler water spray
(WRX-STI)
Add water to the intercooler water spray
tank when the intercooler water spray
warning light in the combination meter
comes on. The warning light comes on
when the water in the tank has decreased
to approximately 0.4 liters (0.4 US qt, 0.4
Imp qt). The tank is located on the right-hand side
of the trunk.
NOTE
Use only pure water for refilling.
In cold weather (when you do not use
the intercooler water spray), keep the
tank half-empty in case the water freez-
es. A larger amount of water could
break the tank if it froze.
B00462
B00169

Maintenance and service 11-45
– CONTINUED –
Wattage Bulb No.
1) Parking light 12V-5W 168
2) Front turn signal light 12V-21W –
3) Front side marker light 12V-5W –
4) Spot light 12V-8W –
5) Room light 12V-8W –
6) High beam head light 12V-60W 9005 (HB3)
7) Front fog light 12V-55W H3
8) Low beam head light WRX-STI 12V-35W D2S
Except WRX-STI 12V-55W H7
9) Trunk room light 12V-5W –
10) High mount stop light
Sedan
(in compartment) 12V-21W –
(in rear spoiler) 12V-1.2W –
Wagon 12V-13W 912
11) Brake/tail light 12V-21/5W 7443
12) Tail light 12V-21/5W 7443
13) Rear turn signal light 12V-21W (Amber) –
14) Backup light 12V-21W 7440
15) License plate light 12V-5W 168
16) Cargo area light 12V-5W –
Headlights (WRX-STI)
Replace any bulb only with a new
bulb of the specified wattage. Using
a bulb of different wattage could re-
sult in a fire.
High-intensity-discharge (HID)
bulbs are used for the low beams of
the headlights on the WRX-STI.
These HID bulbs use an extremely
high voltage. To avoid the risk of an
electric shock and resulting serious
injury, you should not attempt to re-
place them. Neither should you at-
tempt to replace the high-beam
bulbs, remove/refit the headlight as-
semblies, or remove any headlight-
assembly components. For replace-
ment of the headlight bulbs (low-
beam and high-beam), removal and
installation of the headlight assem-
blies, and removal of headlight-as-
sembly components, contact your
SUBARU dealer.

12-4 Specifications
Capacities
AT: Automatic transmission
MT: Manual transmission
Tires
Fuel tank15.9 US gal (60 liters, 13.2 Imp gal)
Engine oil4.2 US qt (4.0 liters, 3.5 Imp qt)
Transmission oil (MT)5-speed3.7 US qt (3.5 liters, 3.1 Imp qt)
6-speed4.3 US qt (4.1 liters, 3.6 Imp qt)
AT differential gear oil1.3 US qt (1.2 liters, 1.1 Imp qt)
Rear differential gear oilWRX-STI1.1 US qt (1.0 liters, 0.9 Imp qt)
Others0.8 US qt (0.8 liters, 0.7 Imp qt)
Transmission oil (AT)10.0 US qt (9.5 liters, 8.4 Imp qt)
Power steering fluid0.7 US qt (0.7 liter, 0.6 Imp qt)
Engine coolantNon-turbo engineMT7.4 US qt (7.0 liters, 6.2 Imp qt)
AT7.3 US qt (6.9 liters, 6.1 Imp qt)
Turbo engineMT8.1 US qt (7.7 liters, 6.8 Imp qt)
Item2.5i, OUTBACK SPORTWRXWRX-STI
Tire sizeP205/55R16 89V215/45R17 91W225/45R17 90W
Wheel size16  6 1
/2 JJ17
 7 JJ17  8 JJ
PressureFront33 psi (230 kPa, 2.3 kgf/cm 2
)33 psi (230 kPa, 2.3 kgf/cm 2
)36 psi (250 kPa, 2.5 kgf/cm 2
)
Rear30 psi (210 kPa, 2.1 kgf/cm 2
)32 psi (220 kPa, 2.2 kgf/cm 2
)30 psi (210 kPa, 2.1 kgf/cm 2
)
Temporary spare tireSizeT135/70 D16T135/70 D17
Pressure60 psi (420 kPa, 4.2 kgf/cm 2
)

Specifications 12-7
– CONTINUED –
1530AWindshield wiper and washer
1620ABrake light
1715AAir conditioner
1815ABackup light
Cruise control
1920AMirror heater
20Empty
2115AIgnition coil (Non-turbo model only)
2210AABS ignition
2320AAccessory power outlet (cargo)
Seat heater
Fuse panelFuse ratingCircuit