engine coolant SUBARU LEGACY 2004 4.G User Guide

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2Maintenance and service
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API classification SL (or SJ):
SAE viscosity No.:
30, 40, 10W-50, 20W-40, 20W-50
Cooling system
Never attempt to 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 re-
moved.
yThe cooling system has been filled at the fac-
tory with a high quality, corrosion-inhibiting,
year-around coolant which provides protection
against freezing down to –33 °F (–36 °C). For
adding, use genuine SUBARU coolant or an
equivalent: a mixture of 50% soft water and 50%
ethylene-glycol basis coolant. Use of improper
coolants may result in corrosion in the cooling
system. It is important to maintain protection
against freezing and corrosion, even if freezing
temperatures are not expected. Never mix dif-
ferent kinds of coolant. y Do not splash the engine coolant over paint-

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2Maintenance and service
ed 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 temperature 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 necessary, there may
be a leak in the engine cooling system. It is recom-
mended that the cooling system and connections be
checked for leaks, damage, or looseness. „
Engine coolant
T Checking the coolant level
1) “FULL” level mark
2) “LOW” level mark
Check the coolant level at each fuel stop.
1. Check the coolant level on the outside of the reser-
voir 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 re-
fill as required.
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2Maintenance and service
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1) Rubber gaskets
3. After refilling the reserve tank and the radiator, re-
install the caps and check that the rubber gaskets in-
side the radiator cap are in the proper position. T Changing the coolant
Change the engine coolant using the following proce-
dures according to the maintenance schedule in the
“Warranty and Maintenance Booklet”.
1. Remove the under cover. 1) Drain plug
2. Place a proper container under the drain plug and
loosen the drain plug.
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2Maintenance and service
1) 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.
Never attempt to 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 re-
moved.
1) Filler neck
2) Fill up to here
4. Slowly pour the coolant and fill to the radiator filler
neck. Do not pour the coolant too quickly, as this may
lead to insufficient air bleeding and trapped air in the system.
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2Maintenance and service
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Coolant capacity (Guideline):
2.5 liter models: MT. 7.2 US qt (6.8 liters, 6.0 Imp qt)
AT. 7.1 US qt (6.7 liters, 5.9 Imp qt)
3.0 liter models:
8.4 US qt (7.9 liters, 7.0 Imp qt)
y 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. y Do not splash the engine coolant over paint-
ed parts. The alcohol contained in the engine
coolant may damage the paint surface. 1) “FULL” level mark
2) “LOW” level mark
5. Pour the coolant and fill to the reservoir tank’s
“FULL” level mark.
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2Maintenance and service
1) Rubber gaskets
6. Put the radiator cap back on and tighten firmly. At
this time, make sure that the rubber gasket in the radi-
ator cap is correctly in place.
7. Start and run the engine for more than five minutes
at 2,000 to 3,000 rpm.
8. Stop the engine and wait until the coolant cools
down (122 to 140 °F [50 to 60 °C]). If there is any loss
of coolant, add coolant to the radiator’s filler neck and
to the reserve tank’s “FULL” level.
9. Put the radiator cap and reservoir cap back on and
tighten firmly.
Air cleaner element
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.
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.
The air cleaner element is a viscous type. It is unnec-
essary to clean or wash the element. „ Replacing the air cleaner element
Replace the air cleaner element according to the
maintenance schedule in the “Warranty and Mainte-
nance Booklet”. Under extremely dusty conditions, re-
place it more frequently. It is recommended that you
always use genuine SUBARU parts.
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2Maintenance and service
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Aluminum wheels (if equipped)
Aluminum wheels can be scratched and damaged
easily. Handle them carefully to maintain their appear-
ance, performance, and safety. yWhen any of the wheels is removed and replaced
for tire rotation or to change a flat, always check the
tightness of the wheel nuts after driving approximatly
600 miles (1,000 km). If any nut is loose, tighten it to
the specified torque.y Never apply oil to the threaded parts, wheel nuts, or
tapered surface of the wheel.y Never let the wheel rub against sharp protrusions or
curbs. y Be sure to fit tire chains on uniformly and completely
around the tire, otherwise the chains may scratch the
wheel.y When wheel nuts, balance weights, or the center
cap is replaced, be sure to replace them with genuine
SUBARU parts designed for aluminum wheels.Windshield washer fluid
Never use engine coolant as washer fluid be-
cause it could cause paint damage.
Check the level of the washer fluid at each fuel stop. If
the level is low, fill the fluid up to the neck of the reser- voir.
Use windshield washer fluid. If windshield washer fluid
is unavailable use clean water.
In areas where water freezes in winter, use an anti-
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Specifications „
Capacities
Fuel tank16.9 US gal (64 liters, 14.1 Imp gal)
Engine oil2.5 liter4.2 US qt (4.0 liters, 3.5 Imp qt)
3.0 liter5.6 US qt (5.3 liters, 4.6 Imp qt)
Transmission oil (MT)3.7 US qt (3.5 liters, 3.1 Imp qt)
Transmission fluid (AT)9.8 US qt (9.3 liters, 8.2 Imp qt)
AT differential gear oil1.3 US qt (1.2 liters, 1.1 Imp qt)
Rear differential gear oilL-S (AT), L (AT)0.9 US qt (0.9 liter, 0.8 Imp qt)
Others0.8 US qt (0.8 liter, 0.7 Imp qt)
Power steering gear fluid0.7 US qt (0.7 liter, 0.6 Imp qt)
Engine coolant2.5 literMT7.2 US qt (6.8 liters, 6.0 Imp qt)
AT7.1 US qt (6.7 liters, 5.9 Imp qt)
3.0 liter8.4 US qt (7.9 liters, 7.0 Imp qt)

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Index
Disc brake pad wear warning indicators
............7-31
Dome light ............................................................ 6-2, 11-76
Door locks ....................................................................... 2-3
Door open warning lights .........................................3-15
Drive belts ....................................................................... 11-26
Driving Drinking ..................................................................... 7
Drugs .......................................................................... 7
Foreign countries .................................................. 8-6
Car/Mobile phone .................................................. 8
Pets ............................................................................. 9
Tips ............................................. 7-14, 7-19, 7-28, 8-6
Tired or sleepy ........................................................ 8
Snowy and icy roads ............................................ 8-12
E
Electrical system .......................................................... 12-3
Emergency Locking Retractor (ELR) ..................1-19
Engine
Compartment overview .......................................11-8
Coolant ...................................................................... 11-18
Exhaust gas (Carbon monoxide) ....................6, 8-3
Hood ........................................................................... 11-5
Oil ................................................................................. 11-11
Overheating ............................................................. 9-19
Starting ...................................................................... 7-10
Stopping .................................................................... 7-12Exterior care
................................................................... 10-2
F
Flat tires ............................................................................ 9-5
Floor mat .......................................................................... 6-21
Fluid level
Automatic transmission .......................................11-28
Brake ... .. ... .. ... ... .. ... .. ... ... .. ... ... .. ... .. ... ... .. ... ... .. ... .. ... ... .. .. 1 1 -3 6
Clutch .......................................................................... 11-38
Power steering ........................................................ 11-35
Fog light switch ............................................................. 3-24
Folding down the rear seat .......................................1-14
Front Differential gear oil ................................................. 11-30
Fog light ..................................................................... 11-69
Seatbelt pretensioners ........................................1-34
Seats ........................................................................... 1-2
Turn signal light, parking light and
marker light ............................................................ 11-69
Front-wheel drive warning light ..............................3-15
Fuel .................................................................................... 7-2
Economy hints ......................................................... 8-2
Filler lid and cap ..................................................... 7-4
Gauge ......................................................................... 3-8
Requirements .......................................................... 7-2
Fuses ................................................................................. 11-59
Fuses and circuits ........................................................ 12-6