Get Maintenance and service -> Cooling system Guide for Subaru Forester SUV 2024

Cooling system

464

used oils are properly disposed of.

If performing oil replacement your-

self, observe the local regulations

and dispose of waste oil properly.

and filter changing intervals shown in the

“Warranty and Maintenance Booklet”.

11-7. Cooling system

& Safety precautions

NOTE

Synthetic oil of the grade and viscosity

noted in chapter 12 is the recom-

mended engine oil for optimum engine

performance. Conventional oil may be

used if synthetic oil is unavailable.

WARNING

& Recommended grade and

Never remove the radiator 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

boiling hot coolant when the cap is

removed.

viscosity

CAUTION

Use only engine oil with the recom-

mended grade and viscosity.

Refer to “Engine oil” �P501.

CAUTION

NOTE

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 en-

gine.

Vehicles are filled at the factory

with SUBARU SUPER COOLANT

that does not require the first

change for 11 years/137,500

miles (11 years/220,000 km). This

coolant should not be mixed with

any other brand or type of cool-

ant during this period. Mixing

with a different coolant will re-

duce the life of the coolant. When

necessary to add the coolant for

any reason, use only SUBARU

SUPER COOLANT.

& Synthetic oil

You should use synthetic engine oil that

meets the same requirements given for

conventional engine oil. When using syn-

thetic oil, you must use oil of the same

classification, viscosity and grade shown

in this Owner’s Manual. Refer to “Engine

oil” �P501. Also, you must follow the oil

If the SUBARU SUPER COOLANT

is diluted with another brand or

^{Cooling system}465

SUBARU dealer to check for leaks, da-

mage, or looseness.

Check the coolant level at each fuel stop.

type, the maintenance interval is

shortened to that of the mixing

coolant.

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 coolant up to just below the

filler neck as shown in the following

illustration.

& Engine coolant

Do not splash the engine coolant

over painted parts. The alcohol

contained in the engine coolant

may damage the paint surface.

! Checking the coolant level

WARNING

Never remove the radiator 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

boiling hot coolant when the cap is

removed.

& Cooling fan, hose and con-

nections

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 coolant temperature high

warning light blinks or illuminates in RED,

the cooling fan circuit may be defective.

Refer to “Coolant temperature low indica-

tor light/Coolant temperature high warning

light” �P173.

Check the fuse and replace it if necessary.

Refer to “Fuses” �P487. If the fuse is not

blown, have the cooling system checked

by your SUBARU dealer.

Fill up to this level.

If the frequent addition of coolant is

necessary between vehicle service visits,

it is recommended that you have your

vehicle inspected by an authorized

“FULL” level mark

“LOW” level mark

– CONTINUED –

Air cleaner element

466

! Changing the coolant

11-8. Air cleaner element

It may be difficult to change the coolant.

Have the coolant changed by your

SUBARU dealer if necessary.

WARNING

The coolant should be changed according

to the maintenance schedule in the “War-

ranty and Maintenance Booklet”.

Do not operate the engine with the

air cleaner element removed. The air

cleaner element not only filters in-

take 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.

3. After refilling the reserve tank and the

radiator, reinstall the cap and check

that the rubber gaskets inside the

radiator cap are in the proper position.

CAUTION

When replacing the air cleaner ele-

ment, use a genuine SUBARU air

cleaner element. If it is not used, it

will cause a negative effect to the

engine.

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.

The air cleaner element functions as a filter

screen. When the element is perforated or

removed, engine wear will be excessive

and engine life shortened.

Do not splash the engine coolant

over painted parts. The alcohol

contained in the engine coolant

may damage the paint surface.

It is not necessary to clean or wash the air

cleaner element.

Maintenance and service -> Cooling system for Your Subaru Forester SUV 2024

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