Get Starting and Operating -> 7-1. Fuel Guide for Subaru Outback SUV Sixth Generation (2020-2025)

(350,1)

北米Model "A2620BE-A" EDITED: 2022/ 4/ 25

7-1. Fuel

s07aa

CAUTION

. Use of a fuel which is low in

quality or use of an inappropriate

fuel additive may cause damage

to the engine and/or fuel system.

. Some gas stations, particularly

those in high altitude areas, offer

fuels posted as regular octane

gasoline with an octane rating

below 87 AKI (90 RON). Use of

those fuels are not recom-

mended.

& Fuel Requirements

s07aa01

The engine is designed to operate using

unleaded gasoline with an octane rating

of 87 AKI (90 RON) or higher.

NOTE

When using the 2.4 L turbo engine

model to tow a trailer, SUBARU recom-

mends using unleaded gasoline with an

octane rating of 91 AKI (95 RON) or

higher to reduce the risk of engine

overheat.

! Fuel octane rating

s07aa0103

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 vehicle sometimes

knocks lightly when you drive up a hill or

when you accelerate. See your dealer or a

qualified service technician if you use a

fuel with the specified octane rating and

your vehicle knocks heavily or persistently.

! RON

s07aa010301

This octane rating is the Research Octane

Number.

! AKI

s07aa010302

This octane rating is the average of the

Research Octane and Motor Octane num-

bers and is commonly referred to as the

Anti Knock Index (AKI).

! Unleaded gasoline

s07aa0104

The neck of the fuel filler pipe is designed

to accept only an unleaded gasoline filler

nozzle. Under no circumstances should

leaded gasoline be used because it will

damage the emission control system and

may impair driveability and fuel economy.

! Reformulated gasoline

s07aa0128

SUBARU supports the use of reformulated

gasoline when available. Reformulated

gasoline has been blended to burn more

cleanly and reduce vehicle emissions.

! MMT

s07aa0106

Some gasoline contains an octane-enhan-

cing additive called MMT (Methylcyclo-

pentadienyl Manganese Tricarbonyl). If

you use such fuels, your emission control

system performance may deteriorate and

the CHECK ENGINE warning light/mal-

function indicator light may turn on. If this

happens, return to your authorized

SUBARU Dealer for service. If it is

determined that the condition is caused

by the type of fuel used, repairs may not be

covered by your warranty.

! Gasoline for cleaner air (2.4 L mod-

els)

s07aa0129

Your use of gasoline with detergent ad-

ditives will help prevent deposits from

forming in your engine and fuel system.

This helps keep your engine in tune and

your emission control system working

properly, and is a way of doing your part

for cleaner air. If you continuously use a

high quality fuel with the proper detergent

and other additives, you should never

need to add any fuel system cleaning

agents to your fuel tank.

Many gasolines are now blended with

materials called oxygenates. Use of these

fuels can also help keep the air cleaner.

Oxygenated blend fuels, such as ethanol

Fuel

348

(351,1)

北米Model "A2620BE-A" EDITED: 2022/ 4/ 25

(ethyl or grain alcohol) may be used in your

vehicle, but should contain no more than

15% ethanol for the proper operation of

your SUBARU.

Do not use any gasoline that contains

more than 15% ethanol, including from any

pump labeled E30, E50 or E85 (which are

only some examples of fuel containing

more than 15% ethanol).

In addition, some gasoline suppliers are

now producing reformulated gasolines,

which are designed to reduce vehicle

emissions. SUBARU approves the use of

reformulated gasoline.

If you are not sure what the fuel contains,

you should ask your service station op-

erators if their gasolines contain deter-

gents and oxygenates and if they have

been reformulated to reduce vehicle emis-

sions.

As additional guidance, only use fuels

suited for your vehicle as explained in the

following description.

. Fuel should be unleaded and have an

octane rating no lower than that specified

in this manual.

. Methanol (methyl or wood alcohol) is

sometimes mixed with unleaded gasoline.

Methanol can be used in your vehicle

ONLY if it does not exceed 5% of the fuel

mixture AND if it is accompanied by

sufficient quantities of the proper cosol-

vents and corrosion inhibitors required to

prevent damage to the fuel system. Do not

use fuel containing methanol EXCEPT

under these conditions.

. If undesirable driveability problems are

experienced and you suspect they may be

fuel related, try a different brand of gaso-

line before seeking service at your

SUBARU dealer.

. Fuel system damage or driveability

problems which result from the use of

improper fuel are not covered under the

SUBARU Limited Warranty.

! Gasoline for cleaner air (2.5 L mod-

els)

s07aa0107

Your use of gasoline with detergent ad-

ditives will help prevent deposits from

forming in your engine and fuel system.

This helps keep your engine in tune and

your emission control system working

properly, and is a way of doing your part

for cleaner air. If you continuously use a

high quality fuel with the proper detergent

and other additives, you should never

need to add any fuel system cleaning

agents to your fuel tank.

Many gasolines are now blended with

materials called oxygenates. Use of these

fuels can also help keep the air cleaner.

Oxygenated blend fuels, such as ethanol

(ethyl or grain alcohol) may be used in your

vehicle, but should contain no more than

10% ethanol for the proper operation of

your SUBARU.

Do not use any gasoline that contains

more than 10% ethanol, including from any

pump labeled E15, E30, E50 or E85 (which

are only some examples of fuel containing

more than 10% ethanol).

In addition, some gasoline suppliers are

now producing reformulated gasolines,

which are designed to reduce vehicle

emissions. SUBARU approves the use of

reformulated gasoline.

If you are not sure what the fuel contains,

you should ask your service station op-

erators if their gasolines contain deter-

gents and oxygenates and if they have

been reformulated to reduce vehicle emis-

sions.

As additional guidance, only use fuels

suited for your vehicle as explained in the

following.

. Fuel should be unleaded and have an

octane rating no lower than that specified

in this manual.

. Methanol (methyl or wood alcohol) is

sometimes mixed with unleaded gasoline.

Methanol can be used in your vehicle

– CONTINUED –

Fuel

349

Starting and Operating

(352,1)

北米Model "A2620BE-A" EDITED: 2022/ 4/ 25

ONLY if it does not exceed 5% of the fuel

mixture AND if it is accompanied by

sufficient quantities of the proper cosol-

vents and corrosion inhibitors required to

prevent damage to the fuel system. Do not

use fuel containing methanol EXCEPT

under these conditions.

. If undesirable driveability problems are

experienced and you suspect they may be

fuel related, try a different brand of gaso-

line before seeking service at your

SUBARU dealer.

. Fuel system damage or driveability

problems which result from the use of

improper fuel are not covered under the

SUBARU Limited Warranty.

& Fuel Filler Lid and Cap

s07aa02

! Locations of the fuel filler lid

s07aa0202

! Refueling

s07aa0201

Only one person should be involved in

refueling. Do not allow others to approach

the area of the vehicle near the fuel filler

pipe while refueling is in progress.

Be sure to observe any other precautions

that are posted at the service station.

1. Stop the vehicle, turn the ignition

switch to the “LOCK”/ “OFF” position and

turn off all the other electrical components.

2. To unlock the fuel filler lid, perform one

of the operations below.

– Press the “

” button on the key fob.

– Press the unlock side of the power

door locking switch.

3. Push the rear side of the fuel filler lid.

4. The fuel filler lid opens automatically.

Open it further by hand.

WARNING

Before opening the fuel filler cap,

first touch the vehicle body or a

metal portion of the fuel pump or

similar object to discharge any sta-

tic electricity that may be present on

your body. If your body is carrying

an electrostatic charge, there is a

possibility that an electric spark

could ignite the fuel, which could

burn you. To avoid acquiring a new

static electric charge, do not get

back into the vehicle while refueling

is in progress.

Fuel

350

(353,1)

北米Model "A2620BE-A" EDITED: 2022/ 4/ 25

1) Open

2) Close

5. Remove the fuel filler cap by turning it

slowly counterclockwise.

WARNING

. Gasoline vapor is highly flam-

mable. Before refueling, always

turn the ignition switch to the

“LOCK”/“OFF” position first and

then close all vehicle doors and

windows. Make sure that there

are no lighted cigarettes, open

flames or electrical sparks in the

adjacent area. Only handle fuel

outdoors. Quickly wipe up any

spilled fuel.

. When opening the cap, grasp it

firmly and turn it slowly to the left.

Do not remove the cap quickly.

Fuel may be under pressure and

spray out of the fuel filler neck,

especially in hot weather. If you

hear a hissing sound while you

are removing the cap, wait for the

sound to stop and then slowly

open the cap to prevent fuel from

spraying out and creating a fire

hazard.

6. Set the fuel filler cap on the cap holder

inside the fuel filler lid.

WARNING

. When refueling, insert the fuel

nozzle securely into the fuel filler

pipe. If the nozzle is lifted or not

fully inserted, its automatic stop-

ping mechanism may not func-

tion, causing fuel to overflow the

tank and creating a fire hazard.

. Stop refueling when the auto-

matic stop mechanism on the

fuel nozzle activates. If you con-

tinue to add fuel, temperature

changes or other conditions

may cause fuel to overflow from

the tank and create a fire hazard.

7. Stop filling the tank after the fuel filler

pump automatically stops. Do not add any

more fuel.

8. Put the cap back on and turn it clock-

wise until you hear a clicking noise. Be

certain not to catch the tether under the

cap while tightening.

CAUTION

Make sure that the cap is tightened

until it clicks to prevent fuel spillage

in the event of an accident.

9. Close the fuel filler lid completely.

CAUTION

Do not let fuel spill on the exterior

– CONTINUED –

Fuel

351

Starting and Operating

(354,1)

北米Model "A2620BE-A" EDITED: 2022/ 4/ 25

surfaces of the vehicle. Because fuel

may damage the paint, be sure to

wipe off any spilled fuel quickly.

Paint damage caused by spilled fuel

is not covered under the SUBARU

Limited Warranty.

NOTE

. You will see the “

” sign in the fuel

gauge. This indicates that the fuel filler

lid is located on the right side of the

vehicle.

. If the fuel filler cap is not tightened

until it clicks or if the tether is caught

under the cap, the CHECK ENGINE

warning light/malfunction indicator

light may illuminate. Refer to “CHECK

ENGINE Warning Light/Malfunction In-

dicator Light” �P184.

. To lock the fuel filler lid, perform one

of the operations below. However if

these operations are performed when

the fuel filler lid is open, the fuel filler lid

will not lock when it is subsequently

closed.

– Press the “

” button on the key

fob.

– Press the lock side of the power

door locking switch.

. When the doors are locked or un-

locked using the automatic door lock

system, the fuel filler lid will be locked

or unlocked at the same time.

CAUTION

. Never add any cleaning agents to

the fuel tank. The addition of a

cleaning agent may cause da-

mage to the fuel system.

. After refueling, turn the cap to the

right until it clicks to ensure that

it is fully tightened. If the cap is

not securely tightened, fuel may

leak out while the vehicle is being

driven or fuel spillage could oc-

cur in the event of an accident,

creating a fire hazard.

. Do not let fuel spill on the exterior

surfaces of the vehicle. Because

fuel may damage the paint, be

sure to wipe off any spilled fuel

quickly. Paint damage caused by

spilled fuel is not covered under

the SUBARU Limited Warranty.

. Always use a genuine SUBARU

fuel filler cap. If you use the

wrong cap, it may not fit or have

proper venting and your fuel tank

and emission control system

may be damaged. It could also

lead to fuel spillage and a fire.

. Immediately put fuel in the tank

whenever the low fuel warning

light illuminates. Engine misfires

as a result of an empty tank could

cause damage to the engine.

Continuing to operate your vehi-

cle at an extremely low fuel level

may result in a reduction of

engine performance.

! If the fuel filler lid cannot be opened

(Legacy)

s07aa0204

If the fuel filler lid cannot be opened due to

a malfunction or a dead battery, it can be

opened from the trunk.

1. Remove the access cover at the right-

side of the trunk trim.

Fuel

352

(355,1)

北米Model "A2620BE-A" EDITED: 2022/ 4/ 25

1) Clip

2. Remove the yellow clip from the trim.

3. Pull the yellow clip to unlock the fuel

filler lid.

! If the fuel filler lid cannot be opened

(Outback/Subaru Outback

Wilderness)

s07aa0203

If the fuel filler lid cannot be opened due to

a malfunction or a dead battery, it can be

opened from the cargo area.

1. Remove the access cover at the right-

side of the cargo area trim using a flat-

head screwdriver.

1) Clip

2. Remove the yellow clip from the trim.

3. Pull the yellow clip to unlock the fuel

filler lid.

Fuel

353

Starting and Operating

(356,1)

北米Model "A2620BE-A" EDITED: 2022/ 4/ 25

7-2. State Emission Testing

(U.S. Only)

s07ab

WARNING

Only use a four-wheel dynamometer

when testing an All-Wheel Drive

(AWD) model.

Testing of an AWD model must

NEVER be performed on a single

two-wheel dynamometer. Attempt-

ing to do so will result in uncon-

trolled vehicle movement and may

cause an accident or injuries to

persons nearby.

CAUTION

. At state inspection time, remem-

ber to tell your inspection or

service station in advance not to

place your SUBARU AWD vehicle

on a two-wheel dynamometer.

Otherwise, serious transmission

damage will result.

. Resultant vehicle damage due to

improper testing is not covered

under the SUBARU Limited War-

ranty and is the responsibility of

the state inspection program or

its contractors or licensees.

California and a number of federal states

have Inspection/Maintenance programs to

inspect your vehicle’s emission control

system. If your vehicle does not pass this

test, some states may deny renewal of

your vehicle’s registration.

Your vehicle is equipped with a computer

that monitors the performance of the

engine’s emission control system. Certi-

fied emission inspectors will inspect the

On-Board Diagnostic (OBDII) system as

part of the state emission inspection

process. The OBDII system is designed

to detect engine and transmission pro-

blems that might cause the vehicle emis-

sions to exceed allowable limits. OBDII

inspections apply to all 1996 model year

and newer passenger cars and trucks.

Over 30 states plus the District of Colum-

bia have implemented emission inspection

of the OBDII system.

. The inspection of the OBDII system

consists of a visual operational check of

the “CHECK ENGINE” warning light/mal-

function indicator light (MIL) and an ex-

amination of the OBDII system with an

electronic scan tool.

. A vehicle passes the OBDII system

inspection if proper operation of the

“CHECK ENGINE” warning light/malfunc-

tion indicator light (MIL) is observed, there

are no stored diagnostic trouble codes,

and the OBDII readiness monitors are all

complete.

. A vehicle fails the OBDII inspection if

the “CHECK ENGINE” warning light/mal-

function indicator light (MIL) is not properly

operating (light is illuminated or is not

working due to a burned out bulb) or there

is one or more diagnostic trouble codes

stored in the vehicle’s computer.

. A state emission inspection may reject

(not pass or fail) a vehicle if the number of

OBDII system readiness monitors “NOT

READY” is greater than one. If the

vehicle’s battery has been recently re-

placed or disconnected, the OBDII system

inspection may indicate that the vehicle is

not ready for the emission test. Under this

condition, the vehicle driver should be

instructed to drive his/her vehicle for a

few days to reset the readiness monitors

and return for an emission re-inspection.

. Owners of rejected or failing vehicles

should contact their SUBARU Dealer for

service.

Some states still use dynamometers in

their emission inspection program. A

dynamometer is a treadmill or roller-like

testing device that allows your vehicle’s

wheels to turn while the vehicle remains in

State Emission Testing (U.S. Only)

354

Starting and Operating -> 7-1. Fuel for Your Subaru Outback SUV Sixth Generation (2020-2025)

Related Topics

Popular Owner Manuals

Latest Owner Manuals