2020 SUBARU BRZ fuel

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6-1. Specifications
6
Vehicle specifications
BRZ_U
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 122 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.)

492 6-1. Specifications
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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:
API grade
SN (Resource Conserving) or SN PLUS (Resource Conserving)
ILSAC multigrade engine oil
GF-5
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

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Vehicle specifications
BRZ_U
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 or SN PLUS)
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.

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6-1. Specifications
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Vehicle specifications
BRZ_U
Electrical system
Differential
Automatic transmission
*: The fluid capacity is provided as a reference. If replacement is necessary,
contact your SUBARU dealer.
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)
1.22 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 noises, vibrations and poor fuel consumption.
Never use different brands together.
Fluid capac-
ity* 7.9 qt. (7.5 L, 6.6 Imp. qt.)
Fluid type ATF WS

496 6-1. Specifications
BRZ_U
Manual transmission
Clutch
Gear oil capacity (Reference) 2.3 qt. (2.2 L, 1.9 Imp. qt.)
Gear oil type and viscosityUse 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
CAUTION
■
Clutch fluid
Never use different brands of brake fluid together. Also, avoid mixing DOT 3
and DOT 4 brake fluids even if they are the same brand.

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Vehicle specifications
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Fuel information
■Fuel tank opening for unleaded gasoline
To help prevent incorrect fueling, your SUBARU has a fuel tank opening that
only accommodates the special nozzle on unleaded fuel pumps.
■ If your engine knocks
● Consult your SUBARU dealer.
● You may occasionally notice light knocking for a short time while acceler-
ating or driving uphill. This is normal and there is no need for concern.
■ Gasoline quality
In very few cases, driveability problems may be caused by the brand of gas-
oline you are using. If driveability problems persist, try changing the brand of
gasoline. If this does not correct the problem, consult your SUBARU dealer.
■ Fuel octane rating
Using a gasoline with a lower octane rating can cause persistent and heavy
knocking, which can damage the engine. Do not be concerned if your vehi-
cle sometimes knocks lightly when you drive up a hill or when you acceler-
ate. Contact your SUBARU dealer if you use a fuel with the specified octane
rating and your vehicle knocks heavily or persistently.
RON
This octane rating is the Research Octane Number.
AKI
This octane rating is the average of the Research Octane and Motor Octane
numbers and is commonly referred to as the Anti Knock Index (AKI). The engine is designed to operate at maximum performance using
unleaded gasoline with an octane rating of 93 AKI (98 RON) or
higher. If 93 AKI (98 RON) fuel is not readily available in your area,
unleaded gasoline with an octane rating of 91 AKI (95 RON) may be
used with no detriment to engine durability or driveability. However,
you may notice a slight decrease in maximum engine performance
and you may hear some knocking (pinging) from the engine while
using 91 AKI (95 RON) fuel. Use of 91 AKI (95 RON) fuel will not affect
your warranty coverage.

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Vehicle specifications
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■
SUBARU does not recommend blended gasoline
● If you use gasohol in your SUBARU, be sure that it has an octane rating
no lower than 93 AKI (98 RON).
● SUBARU DOES NOT recommend the use of gasoline containing metha-
nol.
■ SUBARU does not recommend gasoline containing MMT
Some gasoline contains octane enhancing additive called MMT (Methylcy-
clopentadienyl Manganese Tricarbonyl).
SUBARU DOES NOT recommend the use of gasoline that contains MMT. If
fuel containing MMT is used, your emission control system may be
adversely affected.
The malfunction indicator lamp on the instrument cluster may come on. If
this happens, contact your SUBARU dealer for service. ●
Use only gasoline containing a maxi-
mum of 10% ethanol.
DO NOT use any flex-fuel or gasoline
that could contain more than 10% etha-
nol, including from any pump labeled
E15, E30, E50, E85 (which are only
some examples of fuel containing more
than 10% ethanol).
DO NOT use gasoline
containing more than 10%
ethanol.
(15% ethanol)
(50% ethanol)
(85% ethanol)

504 6-1. Specifications
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CAUTION
■Notice on fuel quality
●Do not use improper fuels. If improper fuels are used the engine and/or
fuel system will be damaged.
● Do not use leaded gasoline.
Leaded gasoline can cause damage to your vehicle’s three-way catalytic
converters causing the emission control system to malfunction.
● Do not use gasohol other than that stated here.
Other gasohol may cause fuel system damage or vehicle performance
problems.
● Using unleaded gasoline with an octane number or rating lower than the
level previously stated will cause persistent heavy knocking.
At worst, this will lead to engine damage.
■ Fuel-related poor driveability
If after using a different type of fuel, poor driveability is encountered (poor
hot starting, vaporization, engine knocking, etc.), discontinue the use of that
type of fuel.
■ When refueling with gasohol
Take care not to spill gasohol. It can damage your vehicle's paint.