2012 SUBARU IMPREZA WRX oil type

&Replacing the battery
CAUTION
. Do not let dust, oil or water get on
or in the transmitter when repla-
cing the battery.
. Be careful not to damage the
printed circuit board in the trans-
mitter when replacing the battery.
. Be careful not to allow children to
touch the battery and any re-
moved parts; children could
swallow them.
. There is a danger of explosion if
an incorrect replacement battery
is used. Replace only with the
same or equivalent type of bat-
tery.
. Batteries should not be exposed
to excessive heat such as sun-
shine, fire or the like.
When the transmitter battery begins to get
weak, transmitter range will begin to
decrease. Replace the battery as soon
as possible. To replace the battery:
1. Open the transmitter case using a flat-
head screwdriver.
2. Remove the old battery from the
holder.
1) Negative (
) side facing up
3. Replace with a new battery (type CR2025 or equivalent) making sure to
install the new battery with the negative( ) side facing up.
4. Refit the removed half of the transmit-
ter case.
After the battery is replaced, the trans-
mitter must be synchronized with the
remote keyless entry system ’s control
unit. Press either the “
”or “”button
six times to synchronize the unit. & Replacing lost transmitters
If you lose a transmitter or want to
purchase additional transmitters (up to
four can be programmed), you should re-
program all of your transmitters for secur- Keys and doors
2-11
– CONTINUED –

Maintenance schedule....................................... 11-3
Maintenance precautions ................................... 11-3
Before checking or servicing in the engine compartment .................................................... 11-4
When checking or servicing in the engine compartment .................................................... 11-4
When checking or servicing in the engine compartment while the engine is running .......... 11-5
Engine hood ....................................................... 11-5
Engine compartment overview .......................... 11-6
Turbo models except STI .................................... 11-6
STI..................................................................... 11-7
Engine oil ............................................................ 11-8
Checking the oil level ......................................... 11-8
Changing the oil and oil filter .............................. 11-9
Recommended grade and viscosity .................. 11-10
Synthetic oil ..................................................... 11-10
Cooling system ................................................ 11-11
Cooling fan, hose and connections ................... 11-11
Engine coolant ................................................. 11-12
Air cleaner element .......................................... 11-13
Replacing the air cleaner element ..................... 11-13
Spark plugs ...................................................... 11-14
Recommended spark plugs .............................. 11-14
Drive belts ........................................................ 11-15
Manual transmission oil .................................. 11-15
Checking the oil level ....................................... 11-15
Recommended grade and viscosity .................. 11-16
Rear differential gear oil .................................. 11-16
Recommended grade and viscosity .................. 11-16Power steering fluid
........................................ 11-17
Checking the fluid level .................................... 11-17
Recommended fluid ......................................... 11-17
Brake fluid ........................................................ 11-18
Checking the fluid level .................................... 11-18
Recommended brake fluid ............................... 11-18
Clutch fluid ....................................................... 11-19
Checking the fluid level .................................... 11-19
Recommended clutch fluid ............................... 11-19
Brake booster .................................................. 11-20
Brake pedal ...................................................... 11-20
Checking the brake pedal free play .................. 11-20
Checking the brake pedal reserve distance....... 11-21
Clutch pedal ..................................................... 11-21
Checking the clutch function ............................ 11-21
Checking the clutch pedal free play .................. 11-21
Hill start assist system .................................... 11-22
Replacement of brake pad and lining ............ 11-22
Breaking-in of new brake pads and linings ....... 11-22
Parking brake stroke ....................................... 11-23
Tires and wheels .............................................. 11-23
Types of tires ................................................... 11-23
Tire pressure monitoring system (TPMS) (if equipped) ...................................................... 11-24
Tire inspection ................................................. 11-25
Tire pressures and wear .................................. 11-25
Wheel balance ................................................. 11-27
Wear indicators ............................................... 11-28
Tire rotation direction mark .............................. 11-28
Tire rotation ..................................................... 11-29
Maintenance and service
11

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 isremoved.
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 mixingcoolant.
. 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- nections
Your 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 ”F 12-
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
– CONTINUED –

Drive belts
1) 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 tomalfunction.
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 level
Except STI
Check 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 –

11-30Maintenance and service
ance between the body and tires.
It also may be dangerous and
lead to loss of vehicle control.
. You must install four tires that are
of the same size, circumference,
construction, manufacturer,
brand (tread pattern), degree of
wear, speed symbol and load
index. Mixing tires of different
types, sizes or degrees of wear
can result in damage to the
vehicle ’s power train. Use of
different types or sizes of tires
can also dangerously reduce
controllability and braking per-
formance and can lead to anaccident.
. Use only radial tires. Do not use
radial tires together with belted
bias tires and/or bias-ply tires.
Doing so can dangerously re-
duce controllability, resulting in
an accident.
& Wheel replacement
When replacing wheels due, for example,
to damage, make sure the replacement
wheels match the specifications of the
wheels that are fitted as standard equip-
ment. Replacement wheels are available from SUBARU dealers.
WARNING
Use only those wheels that are
specified for your vehicle. Wheels
not meeting specifications could
interfere with brake caliper opera-
tion and may cause the tires to rub
against the wheel well housing dur-
ing turns. The resulting loss of
vehicle control could lead to anaccident.
NOTE
When any of the wheels are removed
and replaced for tire rotation or to
change a flat tire, always check the
tightness of the wheel nuts after driv-
ing approximately 600 miles (1,000 km).
If any nut is loose, tighten it to the
specified torque. 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 are removed
and replaced for tire rotation or to change
a flat tire, always check the tightness of
the wheel nuts after driving approximately
600 miles (1,000 km). If any nut is loose,
tighten 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.. When wheel nuts, balance weights, or
the center cap is replaced, be sure to
replace them with genuine SUBARU parts
designed for aluminum wheels.

Seatbelt................................................................. 5, 1-11
Fastening .............................................................. 1-12
Maintenance .......................................................... 1-19
Pretensioners ........................................................ 1-19
Safety tips ............................................................. 1-11
Warning light and chime ......................................... 3-13
Security Alarm system ........................................................ 2-15
ID plate ................................................................... 2-3
Immobilizer. ............................................................. 2-2
Indicator light ......................................................... 3-23
Shock sensors ....................................................... 2-19
Shift-up indicator light ................................................. 3-23
Shock sensors ........................................................... 2-19
Shopping bag hook .................................................... 6-11
SI-DRIVE
Indicator light ......................................................... 3-23
SI-DRIVE mode ......................................................... 7-22
Snow tires ......................................................... 8-8, 11-24
Snowy and icy roads .................................................... 8-7
Sounding a panic alarm .............................................. 2-10
Spark plugs ...................................................... 11-14, 12-3
Specifications ............................................................ 12-2
Speedometer ............................................................... 3-7
SRS Frontal airbag ........................................................ 1-43
SRS airbag (Supplemental Restraint System airbag) ... 5, 1-34
SRS airbag system
Monitors. ............................................................... 1-55
Servicing ............................................................... 1-56
Warning light ......................................................... 3-14 Starting the engine
...................................................... 7-9
State emission testing (U.S. only) .................................. 7-7
Steering wheel
Power ................................................................... 7-24
Tilt/telescopic ......................................................... 3-47
Stopping the engine .................................................... 7-10
Storage compartment ................................................... 6-4
Sun shade ................................................................. 2-29
Sun visors .................................................................. 6-4
Supplemental Restraint System airbag (SRS) ................ 1-34
Synthetic leather upholstery ......................................... 10-5
T
Tachometer ................................................................. 3-9
Temperature gauge ..................................................... 3-10
Temperature warning light Rear differential oil .................................................. 3-16
Temporary spare tire .................................................... 9-2
Tether (child restraint system) .............................. 1-29, 1-31
Tie-down hooks .......................................................... 9-13
Tire................................................................. 11-23, 12-9
Chains ................................................................... 8-9
Inspection ............................................................ 11-25
Pressures and wear .............................................. 11-25
Replacement. ....................................................... 11-29
Rotation .............................................................. 11-29
Size and pressure .................................................. 12-9
Types .................................................................. 11-23
Tire pressure monitoring system (TPMS) ....... 7-32, 9-8, 11-24
Warning light .......................................................... 3-16
Tires and wheels ...................................................... 11-23 Index
14-9