engine coolant SUBARU OUTBACK 2007 4.G User Guide

Maintenance schedule....................................... 11-3
Maintenance precautions ................................... 11-3
Before checking or servicing in the engine compartment .................................................... 11-4
When you do checking or servicing in the engine compartment while the engine is running .......... 11-4
Engine hood ....................................................... 11-4
Engine compartment overview .......................... 11-6
2.5-liter non-turbo models ................................... 11-6
2.5-liter turbo models ......................................... 11-7
3.0-liter models .................................................. 11-8
Engine oil ............................................................ 11-9
Checking the oil level ......................................... 11-9
Changing the oil and oil filter ............................ 11-10
Recommended grade and viscosity .................. 11-12
Recommended grade and viscosity under severe driving conditions .......................................... 11-13
Cooling system ................................................ 11-13
Hose and connections ...................................... 11-14
Engine coolant ................................................. 11-14
Air cleaner element .......................................... 11-17
Replacing the air cleaner element ..................... 11-17
Spark plugs ...................................................... 11-20
Recommended spark plugs .............................. 11-20
Drive belts ........................................................ 11-20
2.5-liter models ................................................ 11-20
3.0-liter models ................................................ 11-21
Manual transmission oil .................................. 11-21
Checking the oil level ....................................... 11-21
Recommended grade and viscosity .................. 11-22Automatic transmission fluid
.......................... 11-22
Checking the fluid level .................................... 11-22
Recommended fluid ......................................... 11-23
Front differential gear oil (AT vehicles) .......... 11-24
Checking the oil level ...................................... 11-24
Recommended grade and viscosity .................. 11-25
Rear differential gear oil .................................. 11-25
Checking the gear oil level ............................... 11-25
Recommended grade and viscosity .................. 11-27
Power steering fluid ........................................ 11-28
Checking the fluid level .................................... 11-28
Recommended fluid ......................................... 11-28
Brake fluid ........................................................ 11-29
Checking the fluid level .................................... 11-29
Recommended brake fluid ............................... 11-29
Clutch fluid (MT vehicles) ............................... 11-30
Checking the fluid level .................................... 11-30
Recommended clutch fluid ............................... 11-30
Brake booster .................................................. 11-31
Brake pedal ...................................................... 11-31
Checking the brake pedal free play .................. 11-31
Checking the brake pedal reserve distance ........................................................ 11-31
Clutch pedal (Manual transmission vehicles) ........................................................ 11-32
Checking the clutch function ............................ 11-32
Checking the clutch pedal free play .................. 11-32
Replacement of brake pad and lining ............ 11-32
Breaking-in of new brake pads and linings ........................................................... 11-33Maintenance and service
11

11-4Maintenance and service
guard against getting oil or fluids
in your eyes. If something does
get in your eyes, thoroughly
wash them out with clean water.
. Do not tamper with the wiring of
the SRS airbag system or seat-
belt pretensioner system, or at-
tempt to take its connectors
apart, as that may activate the
system or it can render it inop-
erative. The wiring and connec-
tors of these systems are yellow
for easy identification. NEVER
use a circuit tester for thesewiring.
If your SRS airbag or seatbelt
pretensioner needs service, con-
sult your nearest SUBARU deal-
er.
& Before checking or servicing
in the engine compartment
WARNING
. Always stop the engine and set
the parking brake firmly to pre-
vent the vehicle from moving.
. Always let the engine cool down.
Engine parts become very hot
when the engine is running and remain hot for some time after
the engine is stopped.
. Do not spill engine oil, engine
coolant, brake fluid or any other
fluid on hot engine components.
This may cause a fire.
. Always remove the key from the
ignition switch. When the ignition
switch is in the “ON ”position,
thecoolingfanmayoperate
suddenly even when the engine
is stopped.
& When you do checking or
servicing in the engine com-
partment while the engine isrunning
WARNING
A running engine can be dangerous.
Keep your fingers, hands, clothing,
hair and tools away from the cooling
fan, belts and any other moving
engine parts. Removing rings,
watches and ties is advisable. Engine hood
To open the hood:
1. If the wiper blades are lifted off the
windshield, return them to their originalpositions.
2. Pull the hood release knob under the
instrument panel.

11-6Maintenance and service
Engine compartment overview &2.5-liter non-turbo models1) Power steering fluid reservoir (page 11-
28)
2) Manual transmission oil level gauge (MT) (page 11-21) or Differential gear oil level
gauge (AT) (page 11-24)
3) Clutch fluid reservoir (page 11-30)
4) Automatic transmission fluid level gauge (page 11-22)
5) Brake fluid reservoir (page 11-29)
6) Fuse box (page 11-47)
7) Battery (page 11-46)
8) Windshield washer tank (page 11-41)
9) Engine oil filler cap (page 11-9)
10) Engine coolant reservoir (page 11-14)
11) Radiator cap (page 11-14)
12) Engine oil level gauge (page 11-9)
13) Air cleaner element (page 11-17)

&2.5-liter turbo models1) Power steering fluid reservoir (page 11-
28)
2) Manual transmission oil level gauge (MT) (page 11-21) or Differential gear oil level
gauge (AT) (page 11-24)
3) Clutch fluid reservoir (page 11-30)
4) Brake fluid reservoir (page 11-29)
5) Automatic transmission fluid level gauge (page 11-22)
6) Fuse box (page 11-47)
7) Battery (page 11-46)
8) Windshield washer tank (page 11-41)
9) Engine oil filler cap (page 11-9)
10) Engine coolant reservoir (page 11-14)
11) Engine oil level gauge (page 11-9)
12) Radiator cap (page 11-14)
13) Air cleaner element (page 11-17) Maintenance and service
11-7
– CONTINUED –

11-8Maintenance and service
& 3.0-liter models
1) Power steering fluid reservoir (page 11-
28)
2) Differential gear oil level gauge (AT) (page 11-24)
3) Automatic transmission fluid level gauge (page 11-22)
4) Brake fluid reservoir (page 11-29)
5) Fuse box (page 11-47)
6) Battery (page 11-46)
7) Windshield washer tank (page 11-41)
8) Engine oil filler cap (page 11-9)
9) Engine coolant reservoir (page 11-14)
10) Radiator cap (page 11-14)
11) Engine oil level gauge (page 11-9)
12) Air cleaner element (page 11-17)

In choosing an oil, you want the proper
quality and viscosity, as well as one that
will add to fuel economy. The following
table lists the recommended viscosities
and applicable temperatures.
When adding oil, different brands may be
used together as long as they are the
same API classification and SAE viscosity
as those recommended by SUBARU.
SAE viscosity number and applicable
temperature
*: 5W-30 is preferred.
Engine oil viscosity (thickness) affects fuel
economy. Oils of lower viscosity provide
better fuel economy. However, in hot
weather, oil of higher viscosity is required
to properly lubricate the engine. &
Recommended grade and
viscosity under severe driv-
ing conditions
If the vehicle is used in desert areas, in
areas with very high temperatures, or
used for heavy-duty applications such as
towing a trailer, use of oil with the following
grade and viscosities is recommended.
API classification SM (or SL): SAE viscosity No.: 30, 40, 10W-50, 20W-40, 20W-50 Cooling system
WARNING
Never attempt to remove the radia-
tor cap until the engine has been
shut off and has cooled down
completely. Since the coolant is
under pressure, you may suffer
serious burns from a spray of boil-
ing hot coolant when the cap isremoved.
CAUTION
. The cooling system has been
filled at the factory with a high
quality, corrosion-inhibiting,
year-around coolant which pro-
vides protection against freezing
down to 33 8F( 36 8C). For add-
ing, use genuine SUBARU cool-
ant or an equivalent: a mixture of
50% soft water (or clear and
drinkable water) and 50% phos-
phate or non-amine type coolant.
Use of improper coolants may
result in corrosion in the cooling
system. It is important to main-
tain protection against freezing
and corrosion, even if freezing Maintenance and service
11-13
– CONTINUED –

11-14Maintenance and service
temperatures are not expected.
Never mix different kinds of cool-ant.
. Do not splash the engine coolant
over painted parts. The alcohol
contained in the engine coolant
may damage the paint surface.
& Hose and connections
Your vehicle employs an electric cooling
fan which is thermostatically controlled to
operate when the engine coolant reaches
a specific temperature.
If the radiator cooling fan does not operate
even when the engine coolant tempera-
ture gauge exceeds the normal operating
range, the cooling fan circuit may be
defective. Check the fuse and replace it
if necessary. If the fuse is not blown, have
the cooling system checked by your
SUBARU dealer.
If frequent addition of coolant is neces-
sary, there may be a leak in the engine
cooling system. It is recommended that
the cooling system and connections be
checked for leaks, damage, or looseness. &
Engine coolant
! Checking the coolant level
Check the coolant level at each fuel stop.
1. Check the coolant level on the outside
of the reservoir while the engine is cool.
2. If the level is close to or lower than the “LOW ”level mark, add coolant up to the
“ FULL ”level mark. If the reserve tank is
empty, remove the radiator cap and refill
as required.
3. After refilling the reserve tank and the
radiator, reinstall the caps and check that
the rubber gaskets inside the radiator cap
are in the proper position.
CAUTION
. Be careful not to spill engine
coolant when adding it. If coolant
touches the exhaust pipe, it may
cause a bad smell, smoke, and/or
a fire. If engine coolant gets on
the exhaust pipe, be sure to wipe
it off.

.Do not splash the engine coolant
over painted parts. The alcohol
contained in the engine coolant
may damage the paint surface.
! Changing the coolant
Always add genuine Subaru cooling sys-
tem conditioner whenever the coolant isreplaced.
Change the engine coolant and add
genuine Subaru cooling system condi-
tioner using the following procedures
according to the maintenance schedule
in the “Warranty and Maintenance Book-
let ”. 1. Remove the under cover.
2.5-liter models
1) Drain plug
3.0-liter models
1) Drain plug 2. Place a proper container under the
drain plug and loosen the drain plug.
3. Loosen the radiator cap to drain the
coolant from the radiator. Then drain the
coolant from the reserve tank. Tighten the
drain plug securely.
WARNING
Never attempt to remove the radia-
tor cap until the engine has been
shut off and has cooled down
completely. Since the coolant is
under pressure, you may suffer
serious burns from a spray of boil-
ing hot coolant when the cap is removed.
4. Install the under cover. Maintenance and service
11-15
– CONTINUED –

11-16Maintenance and service
Non-turbo models
1) Fill up to here
Turbo models
1) Fill up to here
5. Slowly pour the coolant and fill up to
just below the filler neck, allowing enough room to add genuine Subaru cooling
system conditioner in the radiator. Add
genuine Subaru cooling system condi-
tioner until the coolant level reaches the
filler neck. Do not pour the coolant too
quickly, as this may lead to insufficient air
bleeding and trapped air in the system.
Coolant capacity (Guideline): 2.5-liter non-turbo models:MT. 6.8 US qt (6.4 liters, 5.6 Imp qt)
AT. 6.7 US qt (6.3 liters, 5.5 Imp qt)
2.5-liter turbo models: MT. 7.7 US qt (7.3 liters, 6.4 Imp qt)
AT. 7.6 US qt (7.2 liters, 6.3 Imp qt)
3.0-liter models: 7.6 US qt (7.2 liters, 6.3 Imp qt)
CAUTION
. Be careful not to spill engine
coolant when adding it. If coolant
touches the exhaust pipe, it may
cause a bad smell, smoke, and/or
a fire. If engine coolant gets on
the exhaust pipe, be sure to wipe
it off.
. Do not splash the engine coolant
over painted parts. The alcohol
contained in the engine coolant may damage the paint surface.
6. Pour the coolant and fill to the reser-
voir tank
’s “FULL ”level mark.
7. Put the radiator cap back on and
tighten firmly. At this time, make sure that

the rubber gasket in the radiator cap is
correctly in place.
8. Start and run the engine for more than
five minutes at 2,000 to 3,000 rpm.
9. Stop the engine and wait until the
coolant cools down (122 to 1408F [50 to
60 8C]). If there is any loss of coolant, add
coolant to the radiator ’s filler neck and to
the reserve tank ’s “FULL ”level.
10. Put the radiator cap and reservoir cap
back on and tighten firmly. Air cleaner element
WARNING
Do not operate the engine with the
air cleaner element removed. The air
cleaner element not only filters
intake air but also stops flames if
the engine backfires. If the air
cleaner element is not installed
when the engine backfires, you
could be burned.
CAUTION
When replacing the air cleaner ele-
ment, use a genuine SUBARU air
cleaner element. If it is not used,
there is the possibility of causing a
negative effect to the engine.
The air cleaner element functions as a
filter screen. When the element is perfo-
rated or removed, engine wear will be
excessive and engine life shortened.
The air cleaner element is a dry type. It is
unnecessary to clean or wash the ele-ment. &
Replacing the air cleaner element
Replace the air cleaner element according
to the maintenance schedule in the“ Warranty and Maintenance Booklet ”. Un-
der extremely dusty conditions, replace it
more frequently. It is recommended that
you always use genuine SUBARU parts. ! Non-turbo models
1) Connector
2) Duct
3) Clamp
1. Unplug the connector that is attached
to the top of the air cleaner case.
2. Remove the hose that is located at the
bottom of the side surface of the air
cleaner case. Maintenance and service
11-17
– CONTINUED –