2023 SUBARU BRZ check transmission fluid

Maintenance and Service11
Maintenance and Service
11-1. Maintenance Schedule .....................................339
11-2. Maintenance Precautions.................................339
Before Checking or Servicing in the Engine
Compartment ..............................................................340
When Checking or Servicing in the Engine Compartment ..............................................................340
When Checking or Servicing in the Engine Compartment While the Engine Is Running ............341
11-3. Maintenance Tips ..............................................341
Removing and Reinstalling Clips................................341
11-4. Engine Hood ......................................................343
11-5. Engine Compartment Overview.......................345
11-6. Engine Oil ..........................................................346
Engine Oil Consumption..............................................346
Checking the Oil Level .................................................346
Changing the Oil and Oil Filter ....................................347
Recommended Grade and Viscosity ..........................347
Synthetic Oil..................................................................348
11-7. Cooling System .................................................348
Cooling Fan, Hose and Connections ..........................348
Engine Coolant .............................................................349
11-8. Air Cleaner Element ..........................................350
Replacing the Air Cleaner Element .............................350
11-9. Spark Plugs .......................................................352
Recommended Spark Plugs ........................................352
11-10. Drive Belt .........................................................352
11-11. Automatic Transmission Fluid ......................352
Recommended Grade and Viscosity ..........................352
11-12. Differential Gear Oil ........................................353
Recommended Grade and Viscosity ..........................353
11-13. Manual Transmission Oil ...............................353
Recommended Grade and Viscosity ..........................353
11-14. Brake Fluid ......................................................353
Checking the Fluid Level ............................................ 353
Recommended Brake Fluid ........................................ 354
11-15. Clutch Fluid (MT models) ...............................354
Checking the Fluid Level ............................................ 354
Recommended Clutch Fluid ....................................... 355
11-16. Brake Booster .................................................355
11-17. Brake Pedal .....................................................356
11-18. Clutch Pedal (MT models) ..............................356
11-19. Replacement of Brake Pad and Lining..........356
Breaking-in of New Brake Pads and Linings ............ 357
11-20. Parking Brake Stroke ......................................357
11-21. Tires and Wheels ............................................358
Types of Tires .............................................................. 358
Tire Pressure Monito ring System (TPMS) 
(If Equipped)............................................................... 358
Tire Inspection ............................................................. 360
Tire Pressures and Wear............................................. 361
Wheel Balance ............................................................. 363
Wear Indicators ............................................................ 363
Rotational Direction of Tires....................................... 364
Tire Rotation................................................................. 364
Tire Replacement ...... ............................. ...................... 365
Wheel Replacement ..................................................... 365
11-22. Alloy Wheels ....................................................366
11-23. Windshield Washer Fluid ...............................366
11-24. Replacement of Wiper Blades........................367
Windshield Wiper Blade Assembly ............................ 368
Windshield Wiper Blade Rubber ................................ 369
11-25. Battery ..............................................................370
11-26. Fuses ................................................................371
11-27. Installation of Acce ssories ............................373
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Differential Gear Oil
353
Maintenance and Service11
– CONTINUED –
11-12. Differential Gear OilIt is not necessary to check the gear oil
level. Check that there are no cracks,
damage or leakage. However, the oil
inspection should be performed according
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 and Differential
Gear Oil" P383.
11-13. 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 and Differential
Gear Oil" P383.
11-14. Brake Fluid■ Checking the Fluid Level
CAUTION
Using a differential gear oil other
than the specified oil may cause a
decline in vehicle performance.
WARNING
 Never let brake fluid contact your
eyes because brake fluid can be
harmful to your eyes. If brake
fluid gets in your eyes, immedi-
ately flush them thoroughly with
clean water. Fo r safety, when
performing this work, wearing
eye protection is advisable. Brake fluid absorbs moisture
from the air. Any absorbed mois-
ture can cause a dangerous loss
of braking performance. If the vehicle requires frequent
refilling, there may be a leak. If
you suspect a problem, have the
vehicle checked at your SUBARU
dealer.
CAUTION
 When adding brake fluid, be
careful not to allow any dirt into
the reservoir. Never splash the brake fluid over
painted surfaces or rubber parts.
Alcohol contained in the brake
fluid may damage them.
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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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