2020 SUBARU WRX engine

FUEL FILLER LID
The fuel filler lid release is located on the floor
to the left of the driver’s seat. To open the fuel
filler lid, pull the fuel filler lever up and release.
The fuel filler lid is located toward the rear of
the passenger side.
While refueling, place the fuel filler cap on the
cap holder inside the lid.
To close the lid, press it until you hear it latch.
FUEL
• For WRX, use premium unleaded gasoline with an octane rating of 91 AKI or higher. If
91 AKI fuel is not readily available, regular unleaded gasoline with an octane rating of
87 AKI or higher may be temporarily used. However, depending on your driving habits
and conditions, you may notice a decrease in engine performance, fuel economy and
slight engine vibration or knocking. Consult the Owner’s Manual for more detailed
information.
• For WRX STI, use premium unleaded gasoline with an octane rating of 93 AKI or higher.
If 93 AKI fuel is not readily available in your area, premium unleaded gasoline with an
octane rating of 91 AKI may be used with no detriment to engine durability or
driveability. However, you may notice a slight decrease in maximum engine performance
while using 91 AKI fuel. Consult the Owner’s Manual for more detailed information.
• Do not use fuels with more than 10% ethanol. See the Owner’s Manual for more
information.
REFUELING
30

2.0 L ENGINE (WRX)
1Brake Fluid Reservoir
2Main Fuse Box
3Battery
4Windshield Washer Tank
5Engine Oil Filler Cap6Engine Coolant Reservoir
7Radiator Cap
8Engine Oil Dipstick
9Air Cleaner Element
ENGINE COMPARTMENT
35

2.5 L ENGINE (WRX STI)
1Brake Fluid Reservoir
2Main Fuse Box
3Battery
4Windshield Washer Tank
5Engine Oil Filler Cap6Engine Coolant Reservoir
7Radiator Cap
8Engine Oil Dipstick
9Air Cleaner Element
10Power Steering Fluid Reservoir
ENGINE COMPARTMENT
36

NEW VEHICLE BREAK-IN
The performance and long life of your Subaru are dependent on how you handle and care
for your Subaru while it is new.
Follow these instructions during the first 1,000 miles:
• Do not race the engine.
• Do not drive at one consistent engine or vehicle speed, either fast or slow.
• Avoid starting suddenly and rapid acceleration, except in an emergency.
• Avoid hard braking, except in an emergency.
ENGINE OIL
Use 5W-30 synthetic, with one of the following specifications:
• API classification SN with the words “RESOURCE CONSERVING”.
• ILSAC GF-5, which can be identified with the ILSAC certification mark (Starburst mark).
ENGINE OIL CAPACITY
WRX 2.0L Engine
5.4 US quarts (during oil and filter change)
WRX STI 2.5L Engine
4.5 US quarts (during oil and filter change)
There is approximately 1 quart between the
low and full level.
1Full Level
2Low Level
TIRE PRESSURE MONITORING SYSTEM (TPMS)
Your Subaru has a Tire Pressure Monitoring System (TPMS).
Tire pressure specification is on the tire information placard located on the
driver’s side door pillar.
ADDITIONAL SPECIFICATIONS
37

2.0 L ENGINE (WRX) . . . . . .......35
2.5 L ENGINE (WRX STI) . ........36
A
ACCESSORY CONNECTIONS
Power Outlets (12V) . . . . . . . . . . . 16
ADAPTIVE CRUISE CONTROL . . . . . 18
ADDITIONAL RESOURCES . . . . . . . . 2
AUDIO CONTROLS . . . . . . . . . . . . 17
C
CHILD SAFETY LOCKS . . . . . . . . . . 32
CLIMATE CONTROL SYSTEM
Automatic Climate Control
(WRX Only) ................12
Dual-zone Automatic Climate Control
(WRX STI only) . . . . . . . . . . . . . 14
Heated Seats (if equipped) ......15
CRUISE CONTROL . . . . . . . . . . . . 17
D
DRIVING THE VEHICLE
6-Speed Manual Transmission . . . . 24
Automatic Transmission Shift Mode . 24
Driver Control Center Differential (DCCD)
(WRX STI only) . . . . . . . . . . . . . 27
Paddle Shift Control Switches
(if equipped) . . . . . . . . . . . . . . . 25
REV Alarm System (WRX STI only) . . 25
SI-Drive . . . . . . . . . . . . . . . . . . 25
E
ELECTRONIC PARKING BRAKE (EPB)
Auto Vehicle Hold (AVH) — . . . . . . 28
ENGINE OIL.................37
ENGINE OIL CAPACITY . . . . ......37
F
FOLDING THE REAR SEATS.......32
FORWARD ..................2
FUEL.....................30
FUEL CAPACITY ..............31
FUEL FILLER LID . . . . . . . . ......30
G
GAUGES..................22
I
IGNITION SWITCH . . . . . . . . . . . . . 23
IMPORTANT SAFETY INFORMATION . . . 2
IN CASE OF EMERGENCY
Subaru Roadside Assistance......3
SUBARU STARLINK™ Safety and
Security..................3
INSTRUMENT PANEL SWITCHES . . . 20
INTERNAL SAFETY TRUNK RELEASE
WITH SELF-ILLUMINATING
HANDLE . . . . . . . . . . .......33
I/SET SWITCH . . . . . . . . . ......18
K
KEYLESS ACCESS WITH PUSH BUTTON
START
Locking Using Door Handles . . . . . . 5
Opening the Trunk . . . . . . . .....5
Unlock Using Door Handles . . . . . . . 5
KEYLESS ENTRY..............4
L
LATCH/ANCHOR . . . . . . . .......33
LIGHT CONTROLS
Daytime Running Lights . . . . . . . . 18
Illumination Brightness . . .......19
INDEX
38

N
NEW VEHICLE BREAK-IN .........37
O
OVERHEAD PANEL . . . . ........21
P
POWER EXTERIOR MIRRORS . . . . . . 10
POWER MOONROOF
Opening/Closing the Moonroof . . . . 11
Tilting the Moonroof ..........11
POWER WINDOWS . . . . . . . . . . . . 11
PUSH-BUTTON IGNITION SWITCH . . 23
R
REAR VIEW MIRROR
Auto-dimming Mirror ..........10
HomeLink
®5 Accessory Mirror . . . 10
S
SEATING
Head Restraint Adjustment . . . . . . . 8
Manual Seats . . . . . . . . . . . . . . . 8
Power Driver’s Seat . . . . . . . . . . . 8
Seatbelt Adjuster . . . . .........9
SPARE TIRE AND JACK . .........34
STARTING THE ENGINE
Without Push-button Ignition.....23
With Push-button Ignition.......23
T
TILT AND TELESCOPIC STEERING
COLUMN.................9
TIRE PRESSURE MONITORING SYSTEM
(TPMS)..................37
TOWING YOUR ALL-WHEEL DRIVE
SUBARU . . . . . . . . . . . . ......3
TURNING OFF THE VEHICLE
Without Push-button Ignition . . . . . 29
With Push-button Ignition Switch . . 29
TURN SIGNALS . . . . ..........19
W
WARNING AND INDICATOR LIGHTS . . 22
WINDSHIELD WIPERS..........20
INDEX
39