2023 SUBARU BRZ oil temperature

Automatic Transmission
239
Starting and Operating7
– CONTINUED –
3. While depressing the brake pedal,
insert the screwdriver into the hole, press
the shift lock release portion using the
screwdriver, and then move the select
lever.
If the select lever does not move after
performing the above procedure, the shift
lock system may be malfunctioning.
Contact a SUBARU dealer for an inspec-
tion as soon as possible.■ Selection of Manual Mode▼ Selecting gears in manual modeShift the select lever to the “M” position to
change to manual mode.
When the upshift/downshift indicators are
illuminated, the vehicle can be driven in a
selected gear by shifti ng the select lever toward “-” or “+” or operating the “-” or “+”

shift paddle.
1) Upshift indicator
2) Downshift indicator
3) Upshift
4) Downshift
The gear changes once each time the
select lever or a shift paddle is operated.
The selected gear, from “M1” to “M6”, will
be displayed on the combination meter.
When in manual mode, the gear will not
change unless the select lever or a shift
paddle is operated, except in the following
situations.
 When the vehicle speed drops
(downshift only)
 When the engine oil temperature is
high and the engine speed approaches
close to the red zone
If an upshift is atte mpted while the vehicle
speed is low, the gear will not be changed.NOTE If a downshift is attempted at a
vehicle speed where a downshift is not
possible (when the engine speed
would enter the red zone if a downshift
is performed), the downshift warning
buzzer will sound to inform the driver
that a downshift cannot be performed.
 You can perform a skip-shift (for
example, from 4th to 2nd) by operating
702770
13
4
2
3
4702773
CAUTION
Do not place or hang anything on
the shift paddles. Doing so may
result in accidental gear shifting.
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Automatic Transmission
240the shift paddle twice in rapid succes-
sion.
If the temperature of the transmis-
sion fluid becomes too high, the “AT
OIL TEMP” warning light will illumi-
nate. Immediately stop the vehicle in a
safe place and let the engine idle until
the warning light turns off.▼ Temporary manual mode driving
While driving with the select lever in “D”, if
a shift paddle is operated, the gear can
temporarily be selected. In this case, “M”
and the selected gear number will be
displayed on the combination meter. (If
the engine speed approaches close to the
red zone, an upshift will automatically be
performed.)1) Upshift
2) Downshift
The selected gear, from “M1” to “M6”, will
be displayed on the combination meter.NOTE In the following situations, tempo-
rary manual mode will be cancelled. - When the vehicle speed is low
- When the accelerator pedal is
depressed continuously for a
certain amount of time or more
- When the accelerator pedal is
depressed heavily
- When the select lever is shifted
to a position other than “D”
- When the “+” shift paddle switch
is held down for a period of time
When a downshift is attempted at a
vehicle speed where a downshift is not
possible (when the engine speed
would enter the red zone if a downshift
is performed), the downshift warning
buzzer will sound to inform the driver
that a downshift cannot be performed.■ Driving TipsNOTEIf the accelerator and brake pedals are
depressed at the same time, driving
torque may be restrained. This is not a
malfunction.
 On a road surface where there is a risk
of wheelspin (for example, a snow- or gravel covered road), you can start off

from a standstill safely and easily by first
selecting Snow mode.
 Always apply the foot or parking brake
when the vehicle is stopped in the “D” or
“R” position.
 Make sure to apply the parking brake
when parking your vehicle. Do not hold
the vehicle with only the transmission.
 Do not keep the vehicle in a stationary
position on an uphill grade by using the
“D” position. Use the brake instead.
 The engine may, on rare occasions,
knock when the vehicle rapidly acceler-
ates or rapidly pulls away from a standstill.
This phenomenon does not indicate a
malfunction.
1
2702766
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Winter Driving
293
Driving Tips8
– CONTINUED –
8-8. Winter Driving■Operation during Cold
WeatherCarry some emergency equipment, such
as a window scraper, a bag of sand,
flares, a small shovel and jumper cables.
Check the battery and cables. Cold
temperatures reduce battery capacity.
The battery must be in good condition to
provide enough power for cold winter
starts.
It normally takes longer to start the engine
in very cold weather conditions. Use an
engine oil of a proper grade and viscosity
for cold weather. Using heavy summer oil
will make it harder to start the engine.
Keep the door locks from freezing by
squirting them with deicer or glycerin.
Forcing a frozen door open may damage
or separate the rubber weather strips
around the door. If the door is frozen, use
hot water to melt the ice, and afterwards
thoroughly wipe the water away.
Use a windshield washer fluid that
contains an antifr eeze solution. Do not
use engine antifreeze or other substitutes
because they may damage the paint of
the vehicle.
If you fill the windshield washer tank with
a fluid with a different concentration from
If all four tires are not the same in
items (a) to (h), serious mechani-
cal damage could be caused to
the drivetrain of the car, and
affect the followings.-Ride-Handling- Braking- Speedometer/Odometer cali-
bration- Clearance between the body
and the tires
It also may be dangerous and
lead to loss of vehicle control,
and it can lead to an accident.
 In a rollover crash, an unbelted
person is significantly more likely
to die than a person wearing a
seat belt. The driver and all your
passengers should fasten their
seatbelts before st arting to drive
in order to minimize the chance of
serious injury or death. Do not make sharp turns or quick
maneuvers unless absolutely
unavoidable. Such actions are
dangerous as you may lose
control, possibly resulting in a
rollover which could cause death
or serious injury.
 Whenever strong crosswinds are
present, slow do wn sufficiently to
maintain control of your vehicle. Never to drive through pools and
puddles, or roads flooded with
water. Water entering the engine
air intake or the exhaust pipe or
water splashing onto electrical
parts may damage your vehicle
and may cause it to stall. In this
case, contact your SUBARU
dealer immediat ely. Regardless
of its depth, it can wash away the
ground from under your tires,
resulting in possible loss of trac-
tion and even vehicle rollover.
CAUTION
After driving on gravel roads or
rough roads, check the undercar-
riage of the vehicle body for any
damage, deformation, or paint
removal. If you notice any irregulari-
ties, contact a SUBARU dealer for
an inspection as soon as possible.
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Engine Overheating
319
In Case of Emergency9
– CONTINUED –
9-5. Engine Overheating■If Steam Is Coming from the
Engine CompartmentTurn off the engine and get everyone
away from the vehicle until it cools down.
■ If No Steam Is Coming from
the Engine Compartment1. Keep the engine running at idling
speed.
2. Open the hood to ventilate the engine
compartment. Refer to "Engine Hood"
 P343.
Confirm that the cooling fan is turning. If
the fan is not turning, immediately turn off
the engine and contact your authorized
dealer for repair.
3. After the engine coolant temperature
has dropped, turn off the engine.
If the temperature gauge stays in the over-
heated zone, turn off the engine.
4. After the engine has fully cooled down,
check the coolant level in the reserve
tank.
If the coolant level is below the “LOW”
mark, add coolant up to the “FULL” mark.NOTEFor details about how to check the
coolant level or how to add coolant,
refer to "Eng ine Coolant" P349.
5. If there is no coolant in the reserve
tank, add coolant to the reserve tank.
Then remove the radiator cap and fill the
radiator with coolant.
If you remove the radiator cap from a hot
radiator, first wrap a thick cloth around the radiator cap, then turn the cap

counterclockwise slowly without pressing
down until it stops. Release the pressure
from the radiator. After the pressure has
been fully released, remove the cap by
pressing down and turning it.
WARNING
Never remove the radiator cap until
the engine has been shut off and
has fully cooled down. When the
engine is hot, the coolant is under
pressure. Removing the cap while
the engine is still hot could release
a spray of boiling hot coolant,
which could burn you very seri-
ously.
CAUTION
If the engine overheats, the engine
speed or the vehicle speed may be
reduced. Stop the vehicle in a safe
place immediately.
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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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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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Specifications
383
Specifications12
– CONTINUED –
■Manual Transmission and Differential Gear Oil*1: The indicated oil quantity is only a guideline. The necessary quantity for replacement may differ slightly depending on the temperature and other
factors. After refilling the gearbox wi th oil, the oil level should be checked.
*2: For more details about maintenance and service, refer to the indicated section.
*3: The vehicle is filled at the factory.
*4: This type of manual transmission oil can be used. However, using this type of oil will increase fuel consumption.
If oil other than “Manual Transmission Gear Oil LV 75W” is used, the following may be experienced:
 The overall performance and function of the transmission may be adversely affected.
 Rattling noises may occur during id ling and fuel consumption may increase.
Never use different brands together.
*5: Using a differential gear oil other than “D ifferential Gear Oil LX” may cause noise, vibrations and increased fuel consumpti on. Never use different
brands together.■ Fluids
Oil Manual transmission oil Differential gear oil
Oil grade 
Manual Transmission Gear Oil LV 75W*
3
API GL-4 SAE 75W
*4
Differential Gear Oil LX*
3
Other gear oil that meets API GL-5 SAE 75W-85 or GL-5 SAE 75W-
90 specifications*
5
Oil capacity*
1
2.3 US qt (2.2 liters, 1.9 Imp qt) 1.22 US qt (1.15 liters, 1.01 Imp qt)
Remarks*
2
"Manual Transmission Oil" P353 "Differential Gear Oil" P353
Fluid Fluid type
*1
Fluid capacity
*2
Remarks
*3
Automatic Transmission Fluid
(AT models) ATF WS
7.9 US qt (7.5 liters, 6.6 Imp qt)"Automatic Transmission
Fluid" 
P352
Brake fluid FMVSS No. 116, DOT 3 or
DOT 4 brake fluid
―
"Brake Fluid" P353
Clutch fluid (MT models) FMVSS No. 116, DOT 3 or
DOT 4 brake fluid
―"Clutch Fluid (MT models)"

P354
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