transmission oil SUBARU LEGACY 2003 3.G Owners Manual

3-14
AT OIL TEMPerature warning light
(for AT vehicles)
If this light comes on when the engine is running, it may indicate that the
automatic transmission fluid temperature is too hot.
If the light comes on while driving, it is unnecessary to stop the vehicle,
but avoid driving up steep grades or in stop and go traffic.
Automatic transmission control system warning
If the light flashes after the engine starts, it may indicate that the auto-
matic transmission control system is not working properly. Contact
your nearest SUBARU dealer for service immediately.
ABS warning light
The ABS warning light comes on when the ignition switch is turned to the
“ON” position and goes out after about two seconds.
This is an indication that the ABS system is working properly.
CAUTION
If the warning light behaves as follows, the ABS system may not
work properly.When the warning light is on, the ABS function shuts down; how-
ever, the conventional brake system continues to operate normal-
ly. The warning light does not come on when the ignition switch
is turned to the “ON” position.
The warning light comes on when the ignition switch is turned
to the “ON” position, but it does not go out even when the vehicle
speed exceeds approximately 8 mph (12 km/h). The warning light comes on during driving.
If these occur, have the ABS system repaired at the first available
opportunity by your SUBARU dealer.
NOTE
If the warning light behavior is as shown below, the ABS system may be considered normal.
(U.S.) (Canada)

8-10traction by starting the vehicle with the transmission in 2nd than 1st
(both for MT and AT).
Never equip your vehicle with tires larger than those specified in
this manual. Frequent driving of an AWD vehicle under hard-driving conditions
such as rough roads or off roads will necessitate more frequent re-
placement of engine oil, brake fluid and transmission oil than that spe-
cified in the maintenance schedule described in the “Warranty and
Maintenance Booklet ”.
Remember that damage done to your Subaru while operating it off-
road and not using common sense precautions such as those listedabove is not eligible for warranty coverage.
Winter driving
HB3010AA
Operation during cold weather
Carry some emergency equipment, such as tire chains, a window
scraper, a bag of sand, flares, a small shovel, and jumper cables.
Check the battery and cables. Cold temperatures reduce battery ca-
pacity. The battery must be in good condition to provide enough pow-
er for cold winter starts.
Use an engine oil of proper grade and viscosity for cold weather.
Heavy summer oil will cause harder starting.

8
Driving tips8-39
–
CONTINUED –
nearest SUBARU dealer. n
Driving on grades
Before going down a steep hill, slow down and shift into lower gear
(if necessary, use 1st gear) in order to utilize the engine braking effect
and prevent overheating of your vehicle ’s brakes. Do not make sud-
den downshifts. When driving uphill in hot weather, the air conditioner may turn off
automatically to protect the engine from overheating. When driving uphill in hot weather, pay attention to the water tem-
perature gauge pointer (for all vehicles) and AT OIL TEMP warning
light (for AT vehicles) since the engine and transmission are relatively
prone to overheating under these conditions. If the water temperature
gauge pointer approaches the OVERHEAT zone or the AT OIL TEMP
warning light illuminates, immediately switch off the air conditioner
and stop the vehicle at the nearest safe place. Refer to the “Engine
overheat” section in chapter 9, and “Warning and indicator lights ”
section in chapter 3. If your vehicle has an automatic transmission, avoid using the
accelerator pedal to stay stationary on an uphill slope instead of usingthe parking brake or foot brake. That may cause the transmission fluidto overheat. Also, if your vehicle is equipped with an automatic trans-mission, avoid driving with the gear selector lever in “D” when towing
a heavy trailer to prevent fluid overheating. A lower gear should beused. n Parking on a grade
Always block the wheels under both vehicle and trailer when parking.
Apply the parking brake firmly. You should not park on a hill or slope.But if parking on a hill or slope cannot be avoided, you should takethe following steps:
1. Apply the brakes and hold the pedal down.
2. Have someone place wheel blocks under both the vehicle and
trailer wheels.
3. When the wheel blocks are in place, release the regular brakes
slowly until the blocks absorb the load.
4. Apply the regular brakes and then apply the parking brake; slowly

9
In case of emergency9-5
–
CONTINUED –

Do not use oil or grease on the wheel studs or nuts when the
spare tire is installed. This could cause the nuts to become loose and lead to an accident. Never place a tire or tire changing tools in the passenger
compartment after changing wheels. In a sudden stop or colli-
sions, loose equipment could strike occupants and cause injury.Store the tire and all tools in the proper place.
If you have a flat tire while driving, never brake suddenly; keep driving
straight ahead while gradually reducing speed. Then slowly pull off the
road to a safe place.
1. Park on a hard, level surface, whenever possible, then stop the en- gine.
2. Set the parking brake securely and shift a manual transmission ve-
hicle in reverse or an automatic transmission vehicle in the “P” (Park)
position.
3. Turn on the hazard warning flasher and have everyone get out of thevehicle.
4. Put wheel blocks at the front and rear of the tire diagonally opposite
the flat tire.
HGS038BA

9
In case of emergency9-23
–
CONTINUED –
CAUTION
If transmission failure occurs, transport your vehicle on a flat-
bed truck. Do not run the engine while being towed in this method. Trans-
mission damage could result if the vehicle is towed with theengine running. For vehicles with automatic transmission, the traveling speed
must be limited to less than 20 mph (30 km/h) and the traveling
distance to less than 31 miles (50 km). For greater speeds and
distances, transport your vehicle on a flat-bed truck.
HB8010AA
1. Check the transmission and differential oil levels and add oil to
bring it to the upper level if necessary.
2. Release the parking brake and put the transmission in neutral.
3. The ignition switch should be in the “ACC” position while the ve-
hicle is being towed.
4. Take up slack in the towline slowly to prevent damage to the ve-hicle.

11
Maintenance and service
Maintenance schedule11-3
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance precautions 11-3
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine hood 11-5
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine compartment overview 11-7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine oil 11-9
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cooling system 11-14
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine coolant 11-15
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Air cleaner element 11-18
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Spark plugs 11-21
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Drive belts 11-22
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Manual transmission oil 11-23
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Automatic transmission fluid 11-24 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Front differential gear oil (AT vehicles) 11-26 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear differential gear oil 11-27
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power steering fluid 11-29
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brake fluid 11-30
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Clutch fluid (MT vehicles) 11-32 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brake booster 11-33
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brake pedal 11-34
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Clutch pedal (Manual transmission vehicles) 11-35 . . . . . . . . . . . . . . . . . . .
Replacement of brake pad and lining 11-36 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parking brake stroke 11-37
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tires and wheels 11-38
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Types of tires 11-38
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tire inspection 11-39
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tire pressures and wear 11-39
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wheel balance 11-42
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wear indicators 11-43
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tire rotation 11-44
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tire replacement 11-44
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wheel replacement 11-45
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wheel covers 11-46
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Aluminum wheels (if equipped) 11-47 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Windshield washer fluid 11-47
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacement of windshield wiper blades 11-48 . . . . . . . . . . . . . . . . . . . . . . . .

11
Maintenance and service11-7
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CONTINUED –
Engine compartment overview
2.5 liter models
HBB036BB
1 Manual transmission oil level
gauge (MT) (page 11-23) or
Differential gear oil level gauge
(AT) (page 11-26)
2 Air cleaner element (page 11-18)
3 Clutch fluid reservoir (page 11-32)
4 Automatic transmission fluidlevel gauge (page 11-24)
5 Brake fluid reservoir (page 11-30)
6 Fuel filter 7
Windshield washer tank (page 11-47)
8 Fuse box (page 11-52)
9 Battery (page 11-51)
Q Engine oil filler cap (page 11-9)
W Engine coolant reservoir (page 11-15)
E Radiator cap (page 11-15)
R Engine oil level gauge (page 11-9)
T Power steering fluid reservoir (page 11-29)

11-8
3.0 liter models
HBB058BB
1 Air cleaner element (page 11-18)
2 Differential gear oil level gauge
(AT) (page 11-26)
3 Automatic transmission fluidlevel gauge (page 11-24)
4 Brake fluid reservoir (page 11-30)
5 Fuel filter
6 Windshield washer tank (page 11-47) 7
Fuse box (page 11-52)
8 Battery (page 11-51)
9 Engine oil filler cap (page 11-9)
Q Engine coolant reservoir (page 11-15)
W Engine oil level gauge (page 11-9)
E Radiator cap (page 11-15)
R Power steering fluid reservoir (page 11-29)

11
Maintenance and service11-23
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CONTINUED –
schedule in the
“Warranty and Maintenance Booklet ”. Consult your
SUBARU dealer for replacement.
If a belt is loose, cracked, or worn, contact your SUBARU dealer.
Manual transmission oil Checking the oil level
Check the oil level monthly.
1. Park the vehicle on a level surface and stop the engine.
OM-H0210
Upper level Lower level
HBB004DB
2. Pull out the dipstick, wipe it clean, and insert it again.
3. Pull out the dipstick again and check the oil level on it. If it is below
the lower level, add oil through the dipstick hole to bring the level upto the upper level. Recommended grade and viscosity
Each oil manufacturer has its own base oils and additives. Never use
different brands together.
Oil grade: API classification GL-5

11-30When the fluid is cool before the vehicle is run: Check that the oil level is between
“COLD MIN ” and “COLD MAX ” on the surface of the res-
ervoir tank.
3. If the fluid level is lower than the applicable “MIN” line, add the
recommended fluid as necessary to bring the level between the
“MIN” and “MAX” line.
HBB031BB
HBB030BB
Specified range SpecifiedrangeReservoir tank
If the fluid level is extreme low, it may indicate possible leakage. Con- sult your SUBARU dealer for inspection. Recommended fluid
“ Dexron III ” Type Automatic Transmission Fluid
Brake fluid
Checking the fluid level
WARNING
Never let brake fluid contact your eyes because brake fluid can
be harmful to your eyes. If brake fluid gets in your eyes, immedi-
ately flush them thoroughly with clean water. For safety, whenperforming this work, wearing eye protection is advisable. Brake fluid absorbs moisture from the air. Any absorbed mois-
ture can cause a dangerous loss of braking performance.