engine oil SUBARU BRZ 2023 Owner's Manual

Engine Compartment Overview
345
Maintenance and Service11
11-5. Engine Compartment Overview
19
3
2
11
8
10
4
6
7
5
B02096
1) Battery (page 370)
2) Clutch fluid reservoir (MT models)
(page 354)
3) Brake fluid reservoir (page 353)
4) Windshield washer tank (page 366)
5) Engine oil filler cap (page 346)
6) Air cleaner case (page 350)
7) Engine oil filter (page 347)
8) Engine oil level gauge (page 346)
9) Engine coolant reservoir (page 349)
10) Radiator cap (page 349)
11) Main fuse box (page 371)
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Engine Oil
34611-6. Engine Oil■Engine Oil ConsumptionSome engine oil will be consumed while
driving. The rate of consumption can be
affected by such factors as transmission
type, driving style, terrain and tempera-
ture. Under the followi ng conditions, oil
consumption can be increased and thus
require refilling between maintenance
intervals:
 When the engine is new and within the
break-in period
 When the engine oil is of lower quality 
When the incorrect oil viscosity is used
 When engine braking is employed
(repeatedly)
 When the engine is operated at high
engine speeds (for extended periods of
time)
 When the engine is operated under
heavy loads (for extended periods of time)
 When the engine idles for extended
periods of time
 When the vehicle is operated in stop
and go and/or heavy traffic situations
 When the vehicle is used under severe
thermal conditions
 When the vehicle accelerates and
decelerates frequently
Under these or similar conditions, you
should check your oil at least every 2nd
fuel fill-up and change your engine oil
more frequently. Different drivers in the
same car may experience different
results. If your oil consumption rate is
greater than expected, contact your
authorized SUBARU retailer who may
perform a test under controlled conditions.
■ Checking the Oil Level1. Park the vehicle on a level surface and
stop the engine. If you check the oil level
just after stopping the engine, wait for at least 5 minutes for the oil to drain back into

the oil pan before checking the level.
1) Oil level gauge
2) Oil filler cap
3) Oil filter2. Pull out the level gauge, wipe it clean,
and insert it again.
3. Be sure the level gauge is correctly
inserted until it stops.
CAUTION
 If the level gauge is not pulled out
easily, twist the level gauge right
and left, then pull it out. Other-
wise, you may be injured acciden-
tally straining yourself. Use only engine oil with the
recommended grade and
viscosity. Be careful not to spill engine oil
when adding it. If oil touches the
exhaust pipe, it may cause a bad
smell, smoke, and/or a fire. If
engine oil gets on the exhaust
pipe, be sure to wipe it off.
CAUTION
If the level gauge cannot be pulled
out easily, twist the level gauge
right and left, then gently pull it out.
Otherwise, you may be injured acci-
dentally straining yourself.
1
3
2
B02097
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Engine Oil
347
Maintenance and Service11
– CONTINUED –
1) Full level
2) Low level
3) Approximately 1.1 US qt (1.0 liter, 0.9

Imp qt) from low level to full level
4. Pull out the oil level gauge again.
5. Check the oil levels on both sides of
the level gauge. The engine oil level must
be judged 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. To add engine oil, remove the engine oil
filler cap and slowly pour engine oil
through the filler neck. After pouring oil
into the engine, you must use the level
gauge to confirm that the oil level is

correct.
NOTE To prevent overfilling the engine oil,
do not add any additional oil above the
full level when the engine is cold.
■ Changing the Oil and Oil
FilterChange the oil and oil filter according to
the maintenance schedule in the
“Warranty and Maintenance Booklet”.
NOTE Changing the engine oil and oil filter
should be performed by a well-trained
expert. Contact your SUBARU dealer
for changing the engine oil and oil
filter. Fully trained mechanics are on
standby at a SUBARU dealer to utilize
the special tools, spare parts and
recommended oil for this work, and
also, used oils are properly disposed
of.
 If performing oil replacement your-
self, observe the local regulations and
dispose of waste oil properly.■ Recommended Grade and
ViscosityRefer to "Engine Oil" P381.NOTEEngine oil viscosity (thickness) affects
fuel economy. Oils of lower viscosity
provide better fuel economy. How-
ever, in hot weather, oil of higher vis-
cosity is required to properly lubricate
the engine.
CAUTION
 Be careful not to touch the engine
oil filter when removing the oil
filler cap. Doing so may result in a
burn, a pinched finger, or may
cause some other injury.
1
2 3
B02098

Use only engine oil with the
recommended grade and
viscosity. Be careful not to spill engine oil
when adding it. If oil touches the
exhaust pipe, it may cause a bad
smell, smoke, and/or a fire. If
engine oil gets on the exhaust
pipe, be sure to wipe it off.
CAUTION
Use only engine oil with the recom-
mended grade and viscosity.
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Cooling System
348■Synthetic OilYou should use synthetic engine oil that
meets the same requirements given for
conventional engine oil. When using
synthetic oil, you must use oil of the same
classification, viscosity and grade shown
in this Owner’s Manual. Refer to "Engine
Oil" P381. Also, you must follow the oil
and filter changing intervals shown in the
Warranty and Maintenance booklet.NOTESynthetic oil of the grade and viscosity
noted in chapter 12 is the recom-
mended engine oil for optimum engine
performance. Conventional oil may be
used if synthetic oil is unavailable.
11-7. Cooling System
■ Cooling Fan, Hose and
ConnectionsYour vehicle employs an electric cooling
fan which is thermost atically 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 "Engine Coolant
Temperature Gauge"  P129.
WARNING
Never remove the radiator 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 boiling 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. When neces-
sary to top off 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.
B02099
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Spark Plugs
35211-9. Spark PlugsIt may be difficult to replace the spark
plugs. It is recommended that you have
the spark plugs replaced by your
SUBARU dealer.
The spark plugs should be replaced
according to the maintenance schedule in
the “Warranty and Maintenance Booklet”.■ Recommended Spark PlugsRefer to "Electrical System" P385.
11-10. Drive BeltIt is unnecessary to check the deflection of
the drive belt periodically because your
engine is equipped with an automatic belt
tension adjuster. However, replacement
of the belt should be done according to the
maintenance schedule in the “Warranty
and Maintenance Booklet”. Consult your
SUBARU dealer for replacement.
If the belt is loose, cracked or worn, we
recommend that contact your SUBARU
dealer.
11-11. Automatic Transmis -sion FluidIt 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
"Fluids" P383.
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Specifications12
Specifications
12-1. Specifications....................................................380
Dimensions ...................................................................380
Engine............................................................................380
Fuel ................................................................................381
Engine Oil ......................................................................381
Manual Transmission and Differential Gear Oil.........383
Fluids .............................................................................383
Engine Coolant .............................................................384
Electrical System ..........................................................385
Tires ...............................................................................385
Brake Pedal .............. .......................................... ...........385
Brake Disc ................ .......................................... ...........386
Brake Pad ........... ................................................... ........386
12-2. Bulb Chart ..........................................................387
Safety Precautions ...................................................... 387
Bulb Chart .................................................................... 388
12-3. Vehicle Identification ........................................390
12-4. Function Settings ..............................................391
Function Settings and Adjustments on the Center
Information Display ................................................... 391
Individual Settings an d Adjustments Excluding 
Center Information Display and Combination 
Meter Display (Color TFT) ......................................... 391
Function Settings and Adjustments Performed 
by a Dealer ................................................................. 391
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Specifications
381
Specifications12
– CONTINUED –
■Fuel*1: For details, refer to "Fuel" P223.■ Engine OilFor the checking, adding and replacing procedure or other details, refer to "Engine Oil" P346.NOTEThe procedure for changing the engine oil and oil filter should be performed by a properly-trained expert. It is recom-
mended that you have this service performed by your SUBARU dealer.
▼ Approved engine oil
Always use the SUBARU approved engine oil. For fu rther details, please contact your SUBARU dealer.
If the approved engine oil is unavailable, use the alternative engine oil described on the next page.
▼ Alternative engine oil
If the SUBARU approved oil is unavailable, the following alternative oil can be used.NOTE Each quantity indicated is only a guideline. The necessary quantity for replacement may differ slightly depending on the
temperature and other factors.
 In choosing an oil, you want the proper quality and viscosity, as well as one that will enhance fuel economy. Oils of lower
viscosity provide better fuel economy. However, in hot weather, oil of higher viscosity is required to properly lubricate the
engine. The following table lists the recommend ed viscosities and applicable temperatures.Compression ratio 12.5 : 1
Firing order 1 – 3 – 2 – 4
Fuel requirement
*1
Unleaded gasoline with 93 AKI (98 RON) or higher
Fuel tank capacity 13.2 US gal (50 liters, 11.0 Imp gal)
Engine model
FA24 (2.4 L, DOHC, non-turbo)
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Specifications
382When adding oil, different brands may be used together as long as they are the same API classification and SAE viscosity
as those recommended by SUBARU.
Oil grade SAE viscosity No. and
applicable temperature Engine oil capacity
API (American Petroleum Insti-
tute) classification SN with the
words “RESOURCE CON-
SERVING”, SN PLUS with the
words “RESOURCE CON-
SERVING” or SP with the words
“RESOURCE CONSERVING” or
ILSAC (International Lubricant
Specification Advisory Commit-
tee) GF-5 or GF-6A which can
be identified with the ILSAC cer-
tification mark (Starburst mark) 0W-20 synthetic oil is the required oil
for optimum engine performance and
protection. Conventional oil may be
used if synthetic oil is unavailable.
*: If 0W-20 synthetic oil is not avail-
able, 5W-30 conventional oil may
be used if you need to add oil.
However, you should change to
0W-20 synthetic oil at the next oil
change. Adding the oil from low level to full
level:

1.1 US qt (1.0 liter, 0.9 Imp qt)
Changing the oil:
5.1 US qt (4.8 liters, 4.2 Imp qt)
Changing the oil and oil filter: 
5.3 US qt (5.0 liters, 4.4 Imp qt)
ZOM0886
ZOM0293
ZOM0294
0W-20*
-30 -20 -10 0 10 20 30 40
-20 0 60
20 80 100
40
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Tire Information
398Cord separation
The parting of cords from adjacent
rubber compounds.
 Cracking
Any parting within the tread,
sidewall, 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.
 Extra load tire
A tire designed to operate at higher
loads and higher inflation pressure
than the corresponding standard
tire.
 Groove
The space between two adjacent
tread ribs.
 Innerliner
The layer(s) forming the inside
surface of a tubeless tire that contains the inflating medium within

the tire.
 Innerliner separation
The parting of the innerliner from
cord material in the carcass.
 Intended outboard sidewall
(1) The sidewall that contains a
whitewall, bears white lettering or
bears manufacturer, brand, and/
or model name molding that is
higher or deeper than the same
molding on the other sidewall of
the tire, or
(2) The outward facing sidewall
of an asymmetrical tire that has a
particular side that must always
face outward when mounting on a
vehicle.
 Light truck (LT) tire
A tire designated by its manufac-
turer as primarily intended for use
on lightweight trucks or multipur-
pose passenger vehicles.
 Load rating
The maximum load that a tire is
rated to carry for a given inflation
pressure. 
Maximum inflation pressure
The maximum cold inflation pres-
sure to which a tire may be inflated.
 Maximum load rating
The load rating for a tire at the
maximum permissible inflation pres-
sure for that tire.
 Maximum loaded vehicle
weight
The sum of:
(a) Curb weight
(b) Accessory weight
(c) Vehicle capacity weight
(d) Production options weight
 Maximum permissible inflation
pressure
The maximum cold inflation pres-
sure to which a tire may be inflated.
 Measuring rim
The rim on which a tire is fitted for
physical dimension requirements.
 Normal occupant weight
150 lbs (68 kg) times the number of
occupants specified in the second
column of Table 1 that is appended
to the end of this section.BRZ_U.book 398 ページ ２０２２年３月２９日　火曜日　午後３時５９分

Index
411
Index14
Bottle holder ........................................................................ P215
BrakeAssist .............................................................................. P244
Booster............ .......................................... ............ P244, P355
Disc ................................................................................. P386
Fluid .......... ................................................... ......... P353, P383
Pad.................................................................................. P356
Parking ............ .......................................... ............ P255, P357
Pedal ............................................................................... P356
System ............................................................................ P244
Brake pedal Free play ......................................................................... P356
Reserve distance ............................................................ P356
Brake system .......... ........................................................ ..... P244
Warning light ................................................................... P140
Braking ................................................................................ P243 Tips ................................................................................. P243
Breaking-in of new brake pads ............................................ P357
BSD/RCTA .......................................................................... P268 Approach indicator light/warning buzzer ......................... P271
OFF indicator .................................................................. P273
OFF switch ...................................................................... P274
Warning indicator .... ..................................... ......... P150, P274
Warning light ................................................................... P274
Bulb Chart ............................................................................... P387
Replacing ........................................................................ P373
CCameraRear view camera ........................................................... P263
Catalytic converter ....................... ........................................ P291
Center console..................................................................... P214
Center information display (CID) . ........................................ P160
Cleaning .......................................................................... P336
Changing Coolant ............................................................................ P350
Flat tire ............................................................................ P303
Oil and oil filter ................................................................ P347
Charge warning light ............................................................ P137
CHECK ENGINE warning light/Malfunction indicator light... P136
Checking Brake pedal free play ...................................................... P356
Brake pedal reserve distance.......................................... P356
Clutch function ................................................................ P356
Clutch pedal free play ..................................................... P356
Coolant level ................................................................... P349
Fluid level (brake fluid) .................................................... P353
Fluid level (clutch fluid).................................................... P354
Fluid level (washer fluid) ................................................. P366
Oil level (engine oil)................. ........................................ P346
Child restraint systems .............................. ............................ P46
Installation of a booster seat ............................................. P54
Installation with ALR/ELR seatbel t .................................... P51
Lower and top tether anchorages ..................................... P55
Top tether anchorages ...................................................... P59
Child safety .............................................................................. P6
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