2012 SUBARU IMPREZA WRX STI engine oil

Black plate (341,1)
北米Model "A1130BE-A" EDITED: 2011/ 6/ 7
mended engine oil for optimum engine
performance. Conventional oil may be
used if synthetic oil is unavailable.
Cooling system
WARNING
Never attempt to remove the radia-
tor cap until the engine has been
shut off and has cooled down
completely. Since the coolant is
under pressure, you may suffer
serious burns from a spray of boil-
ing hot coolant when the cap is
removed.
CAUTION
. Vehicles are filled at the factory
with SUBARU Super Coolant that
does not require the first change
for 11 years/137,500 miles (11
years/220,000 km). This coolant
should not be mixed with any
other brand or type of coolant
during this period. Mixing with a
different coolant will reduce the
life of the coolant. Should it be
necessary to top up the coolant
for any reason, use only
SUBARU Super Coolant.
If the SUBARU Super Coolant is
diluted with another brand or
type, the maintenance interval is shortened to that of the mixing
coolant.
. Do not splash the engine coolant
over painted parts. The alcohol
contained in the engine coolant
may damage the paint surface.
& Cooling fan, hose and con-
nectionsYour vehicle employs an electric cooling
fan which is thermostatically controlled to
operate when the engine coolant reaches
a specific temperature.
If the radiator cooling fan does not operate
even when the engine coolant tempera-
ture gauge exceeds the normal operating
range, the cooling fan circuit may be
defective. Refer to “Temperature gauge ”
F 3-10.
Check the fuse and replace it if necessary.
Refer to “Fuses”F 11-37 and “Fuse panel
located in the engine compartment” F12-
12.
If the fuse is not blown, have the cooling
system checked by your SUBARU dealer.
If frequent addition of coolant is neces-
sary, there may be a leak in the engine
cooling system. It is recommended that
the cooling system and connections be
checked for leaks, damage, or looseness.
Maintenance and service
11-11
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11

Black plate (342,1)
北米Model "A1130BE-A" EDITED: 2011/ 6/ 7
11-12
Maintenance and service
& Engine coolant! Checking the coolant level
WARNING
Never attempt to remove the radia-
tor cap until the engine has been
shut off and has cooled down
completely. Since the coolant is
under pressure, you may suffer
serious burns from a spray of boil-
ing hot coolant when the cap is
removed.1) “FULL ”level mark
2) “LOW ”level markCheck the coolant level at each fuel stop.
1. Check the coolant level on the outside of the reservoir while the engine is cool.
2. If the level is close to or lower than the
“LOW
”level mark, add coolant up to the
“FULL ”level mark. If the reserve tank is
empty, remove the radiator cap and refill
as required.
3. After refilling the reserve tank and the
radiator, reinstall the cap and check that
the rubber gaskets inside the radiator cap
are in the proper position.
WARNING
Never attempt to remove the radia-
tor cap until the engine has been
shut off and has cooled down
completely. Since the coolant is
under pressure, you may suffer
serious burns from a spray of boil- ing hot coolant when the cap is
removed.
CAUTION
.
Be careful not to spill engine
coolant when adding it. If coolant
touches the exhaust pipe, it may
cause a bad smell, smoke, and/or
a fire. If engine coolant gets on
the exhaust pipe, be sure to wipe
it off.
. Do not splash the engine coolant
over painted parts. The alcohol
contained in the engine coolant
may damage the paint surface.
! Changing the coolant
It may be difficult to change the coolant.
Have the coolant changed by your
SUBARU dealer if necessary.
The coolant should be changed according
to the maintenance schedule in the
“Warranty and Maintenance Booklet ”.

Black plate (345,1)
北米Model "A1130BE-A" EDITED: 2011/ 6/ 7
Drive belts1) Power steering oil pump pulley
2) Front side belt
3) Alternator pulley
4) Air conditioner compressor pulley
5) Rear side belt
6) Crank pulley
A) 22 lbf (98 N, 10 kgf)
CAUTION
The front side belt, which runs in
conjunction with the following com-
ponents, must be used within the
specified deflection.
. Power steering oil pump pulley
. Alternator pulley
. Crank pulley Check the deflection of the front
side belt and if there is any loosen-
ess, cracks, wear or unusual noise
on the front side belt, contact your
SUBARU dealer.
Continuing to use the vehicle with
the belt outside of the specification
may cause the engine to malfunc-
tion and the above components to
malfunction.
To check the deflection of the front side
belt, place a straightedge (ruler) across
two adjacent pulleys (alternator pulley and
crank pulley) and apply a force of 22 lbf
(98 N, 10 kgf) midway between the pulleys
by using a spring scale. The belt deflec-
tion should be the amount specified. If the
front side belt is loose, cracked or worn,
contact your SUBARU dealer.
in (mm)
Deflection
New belt Used belt
A 0.28
–0.35
(7.0 –9.0) 0.35
–0.43
(9.0 –11.0)
The rear side belt is a stretch-type belt,
therefore the deflection does not need to
be checked. If there are cracks or wear
confirmed on the belts and a squeaking
noise is heard from them, contact your
SUBARU dealer.
Manual transmission oil& Checking the oil levelExcept STICheck the oil level monthly.
1. Park the vehicle on a level surface and
stop the engine.
2. Pull out the level gauge, wipe it clean,
and insert it again.
Maintenance and service
11-15
–CONTINUED –
11

Black plate (347,1)
北米Model "A1130BE-A" EDITED: 2011/ 6/ 7
Power steering fluid& Checking the fluid levelThe power steering fluid expands greatly
as its temperature rises; the fluid level
differs according to fluid temperature.
Therefore, 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.
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
between “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
surface of the reservoir tank.
3. If the fluid level is lower than the
applicable “MIN ”line, add the recom-
mended fluid as necessary to bring the
level between the “MIN”and “MAX ”line.
If the fluid level is extremely low, it may
indicate possible leakage. Consult your
SUBARU dealer for an inspection.
WARNING
Be careful not to burn yourself
because the fluid may be hot.
CAUTION
. When power steering fluid is
being added, use only clean fluid,
and be careful not to allow any
dirt into the tank. And never use
different brands together.
. Be careful not to spill power
steering 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.& Recommended fluidRefer to “Fluids”F 12-7.
Maintenance and service
11-17
11

Black plate (383,1)
北米Model "A1130BE-A" EDITED: 2011/ 6/ 7
& Lubricants
NOTEEach quantity indicated here is only a guideline. The necessary quantity for replacement may differ slightly depending on the
temperature and other factors.
! Engine oil
For checking, adding and replacing procedure, or other details, refer to “Engine oil”F 11-8.
Oil grade SAE viscosity No. and
applicable temperature Engine oil capacity
API classification SM or SN
with the words
“
ENERGY CONSERVING ”or
“ RESOURCE CONSERVING ”or
ILSAC GF-4 or GF-5, which can be
identified with the ILSAC certification
mark (Starburst mark) 5W-30 synthetic
oil is the required oil for
optimum engine performance and pro-
tection. Conventional oil may be used if
synthetic oil is unavailable.
*: 10W-30, 10W-40, 5W-30 or 5W-40
conventional oil may be used if replen-
ishment is needed but should be changed
to 5W-30 synthetic oil at the next oil
change.
· When adding the oil from L to F level:
1.1 US qt (1.0 liter, 0.9
Imp qt)
· When changing the oil and oil filter:
- Except STI:
4.4 US qt (4.2 liters, 3.7
Imp qt)
- STI:
4.5 US qt (4.3 liters, 3.8
Imp qt) Specifications
12-5
–
CONTINUED –
12

Black plate (401,1)
北米Model "A1130BE-A" EDITED: 2011/ 6/ 7
crease in temperature could cause
tread separation, and failure of the
tire(s). Possible resulting loss of
vehicle control could lead to an
accident.! Measuring and adjusting air
pressure to achieve proper in-
flationCheck 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 pressures.
Also, the tire pressures are affected
by the outside temperature. It is
best to check tire pressure out-
doors 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.
Accessory weight
The combined weight (in excess of
those standard items which may be
replaced) of automatic transmis-
sion, power steering, power brakes,
power windows, power seats, radio,
and heater, to the extent that these
items are available as factory-in-
stalled equipment (whether in-
stalled or not)..
Bead
The part of the tire that is made of
steel wires, wrapped or reinforced
by ply cords and that is shaped to fit
the rim..
Bead separation
A breakdown of the bond between
components in the bead..
Bias ply tire
A pneumatic tire in which the ply
cords that extend to the beads are
laid at alternate angles substantially
less than 90 degrees to the center-
line of the tread..
Carcass
The tire structure, except tread and sidewall rubber which, when in-
flated, bears the load.
.
Chunking
The breaking away of pieces of the
tread or sidewall..
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..
Cord
The strands forming the plies in the
tire..
Cord separation
The parting of cords from adjacent
rubber compounds..
Cracking
Any parting within the tread, side-
wall, or inner liner of the tire
extending to cord material..
Curb weight
The weight of a motor vehicle with
standard equipment including the
maximum capacity of fuel, oil and
coolant, and if so equipped, air
conditioning and additional weight
optional engine.
Consumer information and Reporting safety defects
13-5
–
CONTINUED –
13

Black plate (3,1)
北米Model "A1130BE-A" EDITED: 2011/ 6/ 3
Warning light ......................................................... 3-19
Braking ..................................................................... 7-24
Tips...................................................................... 7-24
Breaking-in of new brake pads and linings ................... 11-22
Bulb Chart .................................................................. 12-14
Replacing ............................................................. 11-39
C
Cargo area Cover ................................................................... 6-12
Light ............................................................. 6-2, 11-47
Tie-down hooks ..................................................... 6-13
Catalytic converter ....................................................... 8-3
Center Console .................................................................. 6-5
Ventilators ............................................................... 4-3
Center and side ventilators ............................................ 4-3
Changing Coolant ................................................................ 11-12
Flat tire ................................................................... 9-5
Oil and oil filter ...................................................... 11-9
Charge warning light .................................................. 3-16
CHECK ENGINE warning light/Malfunction indicator light ....................................................................... 3-15
Checking Brake pedal free play ............................................ 11-20
Brake pedal reserve distance ................................. 11-21
Clutch function ...................................................... 11-21
Clutch pedal free play ............................................ 11-21
Coolant level ........................................................ 11-12 Fluid level (brake fluid)
.......................................... 11-18
Fluid level (clutch fluid) .......................................... 11-19
Fluid level (power steering fluid) .. ........................... 11-17
Fluid level (washer fluid) ........................................ 11-31
Oil level (engine oil) ................................................ 11-8
Oil level (manual transmission oil) .......................... 11-15
Child restraint systems ................................................ 1-21
Installation of a booster seat .................................... 1-27
Installation with A/ELR seatbelt ... ............................. 1-24
Lower and tether anchorages ................................... 1-29
Top tether anchorages ............................................ 1-31
Child safety ................................................................... 5
Locks .................................................................... 2-20
Chime Key........................................................................\
3-4
Light ..................................................................... 3-29
Seatbelt. ................................................................ 3-13
Cleaning Aluminum wheels ................................................... 10-3
Interior .................................................................. 10-5
Ventilation grille ...................................................... 4-12
Climate control system
Automatic ............................................................... 4-8
Manual ................................................................... 4-3
Clock ........................................................................\
3-25
Clutch Fluid ........................................................... 11-19, 12-7
Pedal .................................................................. 11-21
Compass ........................................................... 3-37, 3-38
Continuously variable transmission Fluid ..................................................................... 12-7
Index
14-3

Black plate (4,1)
北米Model "A1130BE-A" EDITED: 2011/ 6/ 3
14-4
Index
Coolant ............................................................ 11-12, 12-8
Cooling system ......................................................... 11-11
Corrosion protection ................................................... 10-4
Cruise control ............................................................ 7-37
Indicator light ......................................................... 3-24
Set indicator light ................................................... 3-24
Cup holder .................................................................. 6-5
Front passenger ’s .................................................... 6-5
Rear passenger ’s..................................................... 6-7
D
Daytime running light system ....................................... 3-30
Defogger ................................................................... 3-45
Deicer ...................................................................... 3-45
Differential gear oil Front .................................................................... 12-6
Rear ............................................................ 11-16, 12-6
Dimensions ............................................................... 12-2
Disarming the alarm system ........................................ 2-17
Disc brake pad wear warning indicators ........................ 7-25
Dome light ........................................................ 6-2, 11-47
Door Locks ..................................................................... 2-4
Open warning light ................................................. 3-20
Drive belts. ............................................................... 11-15
Driver ’s Control Center Differential ............................... 7-18
Auto indicator light ................................................. 3-24
Indicator light ......................................................... 3-25
Driving AWD vehicles .......................................................... 8-4
Car phone/cell phone .................................................. 8 Drinking.
.................................................................... 7
Drugs ........................................................................\
7
Foreign countries ..................................................... 8-4
Pets ........................................................................\
.. 8
Snowy and icy roads ............................................... 8-7
Tips ................................................. 7-16, 7-17, 8-2, 8-4
Tired or sleepy ........................................................... 8
Winter .................................................................... 8-6
E
Electrical system ........................................................ 12-3
Electronic Brake Force Distribution (EBD) system... 3-19, 7-26
Emergency Locking Retractor (ELR) ............................. 1-12
Engine Compartment overview ............................................ 11-6
Coolant ....................................................... 11-12, 12-8
Exhaust gas (carbon monoxide) ............................. 6, 8-2
Hood .................................................................... 11-5
Oil ................................................................ 11-8, 12-5
Overheating ........................................................... 9-12
Starting .................................................................. 7-9
Stopping ................................................................ 7-10
Exterior care .............................................................. 10-2
F
Flat tires ..................................................................... 9-5
Floor mat ................................................................... 6-10
Fluid level Brake .................................................................. 11-18
Clutch ................................................................. 11-19
Power steering ..................................................... 11-17