2018 SUBARU BRZ fuel cap

384 4-3. Do-it-yourself maintenance
BRZ_U (A4450BE-A)
■Effects of incorrect tire inflation pressure
Driving with incorrect tire inflation pressure may result in the following:
●Reduced fuel economy
●Reduced driving comfort and poor handling
●Reduced tire life due to wear
●Reduced safety
●Damage to the drive train
If a tire needs frequent refilling, have it checked by your SUBARU dealer.
■Instructions for checking tire inflation pressure
When checking tire inflation pressure, observe the following:
●Check only when the tires are cold.
If your vehicle has been parked for at least 3 hours and has not been
driven for more than 1 mile or 1.5 km, you will get an accurate cold
tire inflation pressure reading.
●Always use a tire pressure gauge.
It is difficult to judge if a tire is properly inflated based only on its
appearance.
●It is normal for the tire inflation pressure to be higher after driving as
heat is generated in the tire. Do not reduce tire inflation pressure after
driving.
●Never exceed the vehicle capacity weight.
Passengers and luggage weight should be placed so that the vehicle
is balanced.

5
When trouble arises
431
5-2. Steps to take in an emergency
BRZ_U (A4450BE-A)
(Comes on in
yellow) Cruise control indicator light
Indicates a malfunction in the cruise control system.
■ If the malfunction indicator lamp comes on while driving
First check the following:
● Is the fuel tank empty?
If it is, fill the fuel tank immediately.
● Is the fuel tank cap loose?
If it is, tighten it securely.
The malfunction indicator lamp will go off after several driving trips.
If the malfunction indicator lamp does not go off even after several trips, con-
tact your SUBARU dealer as soon as possible.
■ SRS airbag system warning light
→ P. 129
■ Electric power steering warning light (warning buzzer)
The electric power steering warning light may come on and the warning
buzzer may sound when the voltage is low or the voltage drops.
WARNING
■When the electric power steering warning light comes on
The steering wheel may become extremely heavy.
If the steering wheel becomes heavier than usual when operating, hold
firmly and operate using more force than usual.
Warning lightWarning light/Details

492
BRZ_U (A4450BE-A)
6-1. Specifications
Maintenance data (fuel, oil level, etc.)
Dimensions and weight
*1: Except tS models
*2: tS models
*3: Unladen vehicle
Overall length166.7 in. (4235 mm)*1
167.7 in. (4260 mm)*2
Overall width 69.9 in. (1775 mm)
Overall height*352.0 in. (1320 mm)
Wheelbase 101.2 in. (2570 mm)
TreadFront 59.8 in. (1520 mm)
Rear 60.6 in. (1540 mm)
Vehicle capacity weight
(Occupants + luggage)Details are described on the tire and load-
ing information label. (
→P. 382)

495
6-1. Specifications
6
Vehicle specifications
BRZ_U (A4450BE-A)
Engine
Fuel
*: If unleaded gasoline with an octane rating of 93 AKI (98 RON) is not avail-
able, unleaded gasoline with an octane rating of 91 AKI (95 RON) may be
used with no detriment to engine durability or driveability.
Model FA20
Ty p e Horizontally opposed, liquid cooled 4 cylinder, 4-
stroke gasoline
Bore and stroke 3.4
× 3.4 in. (86 × 86 mm)
Displacement 121.9 cu.in. (1998 cm3)
Drive belt tension Automatic adjustment
Fuel type Unleaded gasoline only
Octane rating 93 AKI (98 RON) or higher*
Fuel tank capacity
(Reference) 13.2 gal. (50 L, 11.0 Imp. gal.)

496 6-1. Specifications
BRZ_U (A4450BE-A)
Lubrication system
*: The engine oil capacity is a reference quantity to be used when changingthe engine oil. Warm up and turn off the engine, wait more than 5 minutes,
and check the oil level on the dipstick.
■ Engine oil selection
Always use SUBARU approved engine oil. For details, we recom-
mend that you contact your SUBARU dealer.
If approved engine oil is unavailable, another motor oil of matching
quality can also be used.
Oil grade:
ILSAC GF5 multigrade engine oil
API classification SN with the words “RESOURCE CONSERVING”
Recommended viscosity: SAE 0W-20
SAE 0W-20 is the best choice for
good fuel economy and good
starting in cold weather.
If SAE 0W-20 is not available,
SAE 5W-20 oil may be used.
However, it must be replaced
with SAE 0W-20 at the next oil
change.
Oil capacity
(Drain and refill 
reference*)
• Without filter
• With filter 5.5 qt. (5.2 L, 4.6 Imp. qt.)
5.7 qt. (5.4 L, 4.8 Imp. qt.)
Outside temperature

497
6-1. Specifications
6
Vehicle specifications
BRZ_U (A4450BE-A)
Oil viscosity (0W-20 is explained here as an example):
• The 0W in 0W-20 indicates the characteristic of the oil which allows
cold startability. Oils with a lower value before the W allow for easier
starting of the engine in cold weather.
• The 20 in 0W-20 indicates the viscosity characteristic of the oil when the oil is at high temperature. An oil with a higher viscosity (one with a
higher value) may be better suited if the vehicle is operated at high
speeds, or under extreme load conditions.
How to read oil container labels:
Either or both API registered marks are added to some oil containers
to help you select the oil you should use.
API Service Symbol
Top portion: The oil quality desig-
nation by API (American Petro-
leum Institute) (SN)
Center portion: The SAE viscosity
grade (SAE 0W-20)
Lower portion: “RESOURCE
CONSERVING” means that the
oil has fuel saving and environ-
mental protection capabilities.
ILSAC Certification Mark
The ILSAC (International Lubri-
cant Specification Advisory Com-
mittee) Certification Mark is
displayed on the front of the con-
tainer.

499
6-1. Specifications
6
Vehicle specifications
BRZ_U (A4450BE-A)
Electrical system
Differential
Battery
Specific gravity reading at
68
°F (20 °C): 1.250
 1.290 Fully charged
1.160  1.200 Half charged
1.060  1.100 Discharged
Charging rates
Quick charge
Slow charge 15 A max.
5 A max.
Oil capacity (Refer-
ence)
1.20 qt. (1.15 L, 1.01 Imp. qt.)
Oil type and viscosity • Differential Gear Oil LX
• Other gear oil that meets API GL-5 and SAE
75W-85 or GL-5 and SAE 75W-90 specifications
CAUTION
■ Differential gear oil
Using a differential gear oil other than Differential Gear Oil LX may cause
occurrences of rattling noises and vibrations while idling and poor fuel con-
sumption.
Never use different brands together.

500 6-1. Specifications
BRZ_U (A4450BE-A)
Automatic transmission
*: The fluid capacity is provided as a reference. If replacement is necessary,contact your SUBARU dealer.
Manual transmission
Clutch
Fluid capac-
ity* 7.9 qt. (7.5 L, 6.6 Imp. qt.)
Fluid type ATF WS
Gear oil capacity (Reference) 2.3 qt. (2.2 L, 1.9 Imp. qt.)
Gear oil type and viscosity Use either of the following:
• “MG Gear Oil special II”
• Other gear oil that meets API GL-3, GL-4, or GL-5 and SAE 75W-90 specifica-
tions
CAUTION
■ Manual transmission gear oil
If oil other than “MG Gear Oil special II” is used, the following may be experi-
enced:
●The overall performance and function of the transmission may be
adversely affected.
● Rattling noises may occur during idling and fuel consumption may
increase.
Never use different brands together.
Pedal free play 0.2  0.6 in. (5  15 mm)
Fluid type FMVSS No.116 DOT 3 or DOT 4 brake
fluid