2018 SUBARU WRX check oil

(512,1)
北米Model "A1700BE-B" EDITED: 2017/ 10/ 11
Except STI
1) Oil level gauge
2) Oil filler cap
3) Oil filter
CAUTION
If the level gauge is not pulled out
easily, twist the level gauge right and
left, then pull it out. Otherwise, you
may be injured accidentally strain-
ing yourself.
2. Pull out the level gauge, wipe it clean,
and insert it again.
3. Be sure the level gauge is correctly
inserted until it stops.
STI
1) Notch
2) Full level
3) Low level
4) Approximately 1.1 US qt (1.0 liter, 0.9 Imp
qt) from low level to full level
Except STI
1) Full level
2) Low level
3) Approximately 1.1 US qt (1.0 liter, 0.9 Imp
qt) from low level to full level4. Pull out the oil level gauge again.
5.STI:
Check the oil level on the gauge. If the oil
level is below the low level mark, add oil so
that the full level is reached.
Except STI:
Check the oil levels on both sides of the
level gauge. Judge the engine oil level by
the lowest of the two levels. If the oil level is
below the low level mark, add oil so that
the full level is reached.
Maintenance and service/Engine oil
11-14

(519,1)
北米Model "A1700BE-B" EDITED: 2017/ 10/ 11
Spark plugsIt may be difficult to replace the spark
plugs. It is recommended that you have the
spark plugs replaced by your SUBARU
dealer.
Have the spark plugs replaced according
to the maintenance schedule in the“War-
ranty and Maintenance Booklet”.&Recommended spark plugsFor the recommended spark plugs, refer to
“Electrical system”F12-8.
Drive beltsNOTEFor models except STI, it is unneces-
sary to check the deflection of the drive
belt periodically because this engine is
equipped with an automatic belt ten-
sion adjuster. However, have the belt
replaced according to the maintenance
schedule in the“Warranty and Main-
tenance Booklet”. Consult your
SUBARU dealer for replacement.
If the drive belt is loose, cracked or
worn, contact your SUBARU dealer.
STI
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
–CONTINUED–
Maintenance and service/Spark plugs
11-21
11

(520,1)
北米Model "A1700BE-B" EDITED: 2017/ 10/ 11
belt and if there is any looseness,
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 deflection
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
A0.28–0.35
(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 oilIt is not necessary to check the transmis-
sion oil level. Check that there are no
cracks, damage or leakage. However,
have the oil inspected by your SUBARU
dealer according to the maintenance
schedule in the“Warranty and Mainte-
nance Booklet”. Consult your SUBARU
dealer for details.&Recommended grade and
viscosityEach oil manufacturer has its own base
oils and additives. Never use different
brands together. For details, refer to
“Manual transmission, front differential
and rear differential gear oil”F12-6.
Continuously variable trans-
mission fluidIt is not necessary to check the transmis-
sion fluid level. Check that there are no
cracks, damage or leakage. However,
have the fluid inspected by your SUBARU
dealer according to the maintenance
schedule in the“Warranty and Mainte-
nance Booklet”. Consult your SUBARU
dealer for details.
Maintenance and service/Manual transmission oil
11-22

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北米Model "A1700BE-B" EDITED: 2017/ 10/ 11
Front differential gear oil
(CVT models) and rear differ-
ential gear oilIt is not necessary to check the gear oil
level. Check that there are no cracks,
damage or leakage. However, have the oil
inspected by your SUBARU dealer ac-
cording to the maintenance schedule in
the“Warranty and Maintenance Booklet”.
Consult your SUBARU dealer for details.&Recommended grade and
viscosityEach oil manufacturer has its own base
oils and additives. Never use different
brands together. For details, refer to
“Manual transmission, front differential
and rear differential gear oil”F12-6.
CAUTION
Using a differential gear oil other
than the specified oil may cause a
decline in vehicle performance.
Power steering fluid (STI)&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”onthe 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 you add power steering
fluid, 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
–CONTINUED–
Maintenance and service/Front differential gear oil (CVT models) and rear differential gear oil
11-23
11

(536,1)
北米Model "A1700BE-B" EDITED: 2017/ 10/ 11
Alloy wheelsAlloy wheels can be scratched and da-
maged 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 alloy wheels.
Windshield washer fluid
CAUTION
Never use engine coolant as washer
fluid because it could cause paint
damage.Windshield washer fluid warning in-
dicator
When there is only a small amount of
washer fluid remaining, the windshield
washer fluid warning indicator will illumi-
nate. When this occurs, refill the washer
fluid as follows.
Remove the washer tank filler cap, then
add windshield washer fluid until it reaches
the“FULL”mark on the tank. If windshield
washer fluid is unavailable use clean
water.
In areas where water freezes in winter, use
an anti-freeze type windshield washer
fluid. SUBARU Windshield Washer Fluid
contains 58.5% methyl alcohol and 41.5%
surfactant, by volume. Its freezing tem-
perature varies according to how much it is
diluted, as indicated in the following table.
Maintenance and service/Alloy wheels
11-38

(558,1)
北米Model "A1700BE-B" EDITED: 2017/ 10/ 11
&Engine oilFor the checking, adding and replacing procedure or other details, refer to“Engine oil”F11-13.NOTEHave the procedure for changing the engine oil and oil filter performed by a properly-trained expert. It is recommended that
you have this service performed by your SUBARU dealer.
!Approved engine oil
Always use the SUBARU approved engine oil. For further details, please contact your SUBARU dealer.
If the approved engine oil is unavailable, use the alternative engine oil described on the next page.
Specifications/Specifications
12-4

(560,1)
北米Model "A1700BE-B" EDITED: 2017/ 10/ 11
&Manual transmission, front differential and rear differential gear oilOil Manual transmission oilFront differential gear oil (CVT
models)Rear differential gear oil
Oil
gradeSTI.API classification GL-5
(75W-90)*
3
—
API classification GL-5
Except STI.SUBARU Extra MT*
3
.API classification GL-5
(75W-90)*
4
.SUBARU Extra MT*
3
.API classification GL-5
(75W-90)
SAE viscosity No. and
applicable tempera-
ture——.75W-90*
.90
*: recommended
Oil ca-
pacity*
1
STI 4.3 US qt (4.1 liters, 3.6 Imp qt)—1.1 US qt (1.0 liter, 0.9 Imp qt)
Except STI 3.5 US qt (3.3 liters, 2.9 Imp qt) 1.5 US qt (1.4 liters, 1.2 Imp qt) 0.8 US qt (0.8 liters, 0.7 Imp qt)
Remarks*2
“Manual transmission oil”F11-22
“Front differential gear oil (CVT
models) and rear differential gear
oil”F11-23
“Front differential gear oil (CVT models) and rear differential
gear oil”F11-23
*1: The indicated oil quantity is only a guideline. The necessary quantity for replacement may differ slightly depending on the temperature and other
factors. Check the oil level after refilling the gearbox with oil.
*2: For more details about maintenance and service, refer to the indicated section.
*3: The vehicle is filled at the factory with this oil.
*4: You may use this type of manual transmission oil. However, using this type of oil will detract from driveability and fuel efficiency.
Specifications/Specifications
12-6

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北米Model "A1700BE-B" EDITED: 2017/ 10/ 11
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 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 mis-
takenly 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 andsidewall 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.
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Consumer information and Reporting safety defects/Tire information
13-5
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