2006 SUBARU LEGACY transmission oil

3-18 Instruments and controls
NOTE
This light also comes on when the fuel
filler cap is not tightened until it clicks.
If you have recently refueled your vehicle,
the cause of the CHECK ENGINE warning
light/malfunction indicator lamp coming on
could be a loose or missing fuel filler cap.
Remove the cap and retighten it until it clicks. Make sure no thing is interfering
with the sealing of the cap. Tightening the
cap will not make the CHECK ENGINE
warning light turn off immediately. It may
take several driving trips. If the light does
not go out, take your vehicle to your au-
thorized SUBARU dealer immediately. T If the light is blinking:
If the light is blinking while driving, an en-
gine misfire condition has been detected
which may damage the emission control
system.
To prevent serious damage to the emis-
sion control system, you should do the fol-
lowing.y Reduce vehicle speed.
y Avoid hard acceleration.
y Avoid steep uphill grades.
y Reduce the amount of cargo, if possi-
ble.y Stop towing a trailer as soon as possi-
ble. The CHECK ENGINE warning light may
stop blinking and come on steadily after
several driving trips. You should have
your vehicle checked by an authorized
SUBARU dealer immediately. „
Charge warning light
If this light comes on when the engine is
running, it may indicate that the charging
system is not working properly.
If the light comes on while driving or does
not go out after the e ngine starts, stop the
engine at the first safe opportunity and
check the alternator belt. If the belt is
loose, broken or if the belt is in good con-
dition but the light remains on, contact
your nearest SUBARU dealer immediate- ly. „ Oil pressure warning
light
If this light comes on when the engine is
running, it may indicate that the engine oil
pressure is low and the lubricating system is not working properly.
If the light comes on while driving or does
not go out after the engine starts, stop the
engine at the first safe opportunity and
check the engine oil level. If the oil level is
low, add oil immediately. If the engine oil
is at the proper level but the light remains
on, contact your nearest SUBARU dealer
immediately. „
AT OIL TEMPerature
warning light (AT vehi-
cles)
The AT oil temperature warning light
comes on when the ignition switch is
turned to the “ON” position and goes out
after approximately two seconds.
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 un-
necessary to stop the vehicle, but avoid
driving up steep grades or in stop and go
traffic. „ Low tire pressure warn-
ing light (if equipped)
When the ignition switch is turned to the
“ON” position, the low tire pressure warn-
ing light will come on for approximately 2
Do not operate the engine with the
oil pressure warning light on. This
may cause serious engine damage.

Starting and operating 7-7
Under no circumstances should the rear
wheels be jacked off the ground, nor
should the driveshaft be disconnected for
state emission testing.
The EPA has issued regulations for in-
specting the On-Board Diagnostic (OBD)
system as part of the state emissions in-
spection. The OBD system is designed to
detect engine and transmission problems
that might cause vehicle emissions to ex-
ceed allowable limits. These inspections
apply to all 1996 model year and newer
passenger cars and li ght trucks. Over 30
states plus the Distr ict of Columbia have
implemented the OBD system inspection. y The inspection of the OBD system con-
sists of a visual operational check of the “ CHECK ENGINE ” warning light/malfunc-
tion indicator lamp (MIL) and an examina-
tion of the OBD system with an electronic
scan tool while the engine is running. y A vehicle passes
the OBD system in-
spection if proper the “ CHECK ENGINE”
warning light/MIL illumination is observed, there is no stored diagnostic trouble
codes, and the OBD system readiness
monitors are complete. y A vehicle fails
the OBD inspection if the
“ CHECK ENGINE ” warning light/MIL is
not properly operating or there is one or
more diagnostic trouble codes stored in vehicle’s computer with the “
CHECK EN-
GINE ” warning light/MIL illuminated.
y A state emission inspection may reject
(not pass or fail) a vehicle if the number of
OBD system readiness monitors “ Not
Ready ” is greater than one. Under this
condition, the vehicle operator should be
instructed to drive his/her vehicle for a few
days to set the monitors and return for an
emission re-inspection. y Owners of rejected or failing vehicles
should contact their SUBARU Dealer for
service.
Preparing to drive
You should perform the following checks
and adjustments every day before you
start driving.
1. Check that all windows, mirrors, and
lights are clean and unobstructed.
2. Check the appearance and condition of
the tires. Also check tires for proper infla-tion.
3. Look under the vehicle for any sign of leaks.
4. Check that the hood, trunk (Sedan)
and rear gate (Station wagon) are fully
closed.
5. Check the adjustment of the seat.
6. Check the adjustment of the inside and outside mirrors.
7. Fasten your seatbelt. Check that your
passengers have fastened their seatbelts.
8. Check the operation of the warning and
indicator lights when the ignition switch is
turned to the “ON” position.
9. Check the gauges, indicator and warn-
ing lights after starting the engine.
NOTE
Engine oil, engine coolant, brake fluid,
washer fluid and other fluid levels
should be checked daily, weekly or at
fuel stops.

Starting and operating 7-15
– CONTINUED –
Gearshifts can be performed using the se-
lector lever.
Using the selector lever
Shift to the next-higher gear by briefly
pushing the selector
lever toward the “+”
end of the manual gate.
Shift to the next-lower gear by briefly pull-
ing the selector lever toward the “–” end of
the manual gate.
NOTE
Please read the following points care-
fully and bear them in mind when using
the manual mode.y The transmission does not automati-
cally shift up in the manual mode. Per-
form gearshifts in accordance with
road conditions so that the tachometer
needle does not enter the red zone. If the engine speed reaches a predeter-
mined level, a fuel-cut function will op-
erate. Shift up if this happens.y
If you attempt to sh ift down when the
engine speed is too high, i.e., when a
downshift would push the tachometer
needle beyond the red zone, beeps will
be emitted to warn you that the down-
shift is not possible. y If you attempt to shift up when the
vehicle speed is too low, the transmis-
sion will not respond.y You can perform a skip-shift (for ex-
ample, from 4th to 2nd) by operating
the selector lever twice in rapid suc-
cession. y The transmission automatically se-
lects 1st gear when the vehicle stops moving. y If the temperature of the automatic
transmission fluid becomes too high,
the “AT OIL TEMP” warning light will
come on and upshifts to 4th gear will
not be possible. Immediately stop the
vehicle in a safe place and let the en-
gine idle until the warning light goes off. „
Maximum speeds
The following tables show the maximum
speeds that are possible with each differ-
ent gear.
When down shifting, it is important to con-
firm that the current vehicle speed is not in
excess of the Maximum Allowable Speed
of the gear which is about to be selected.
700111
When down shifting, ensure that the
vehicle is not travelling at a speed
exceeding the Maximum Allowable
Speed for the gear which is about to
be selected. Failure to observe this
precaution can lead to engine over-
revving and this in turn can result in
engine damage.
In addition, sudden application of
engine braking caused by down
shifting when the vehicle is travel-
ling on a slippery surface can lead to
wheel locking; as a consequence,
control of the vehicle may be lost
and the risk of an accident in-
creased.

7-22 Starting and operating
transmission will automatically switch
back from manual mode to normal mode.
NOTE
Please read the following points care-
fully and bear them in mind when using the manual mode.yWhen the temperature of the auto-
matic transmission fluid is higher than
normal, warning beeps are emitted and
the shift position in dicator shows “–”.
If these warnings are issued, deselect
the manual mode to protect the auto-
matic transmission from damage. y When the temperature of the engine
oil is higher than normal, warning
beeps are emitted and the shift posi-
tion indicator shows “–”. If these warn-
ings are issued, deselect the manual
mode to protect th e engine from dam-
age. (3.0-liter models only)y The transmission does not automati-
cally shift up in the manual mode. Per-
form gearshifts in accordance with
road conditions so that the tachometer
needle does not enter the red zone. If
the engine speed reaches a predeter-
mined level, a fuel-cut function will op-
erate. Shift up if this happens. (Also, in
the case of a 3.0-liter model, the trans-
mission may automatically shift up to
protect the engine.) y If you attempt to shift down when the engine speed is too high, i.e., when a
downshift would push the tachometer
needle beyond the red zone, beeps will
be emitted to warn you that the down-
shift is not possible. y
If you attempt to shift up when the
vehicle speed is too low, the transmis-
sion will not respond. y You can perform a skip-shift (for ex-
ample, from 4th to 2nd) by operating
the selector lever or a steering-wheel
switch twice in rapid succession.y The transmission automatically se-
lects 1st gear when the vehicle stops
moving. y If the temperature of the automatic
transmission fluid becomes too high,
the “AT OIL TEMP” warning light will
come on and upshifts to 5th gear will
not be possible. Immediately stop the
vehicle in a safe place and let the en-
gine idle until the warning light goesoff. „
Maximum speeds
The following tables show the maximum
speeds that are possible with each differ- ent gear.
When down shifting, it is important to con-
firm that the current vehicle speed is not in
excess of the Maximum Allowable Speed
of the gear which is about to be selected.
When down shifting, ensure that the
vehicle is not travelling at a speed
exceeding the Maximum Allowable
Speed for the gear which is about to
be selected. Failure to observe this
precaution can lead to engine over-
revving and this in turn can result in
engine damage.
In addition, sudden application of
engine braking caused by down
shifting when the vehicle is travel-
ling on a slippery surface can lead to
wheel locking; as a consequence,
control of the vehicle may be lost
and the risk of an accident in-
creased.

Driving tips 8-7
– CONTINUED –
ground from under your tires, resulting in
possible loss of traction and even vehicle
rollover.y
Always check your brakes for effective-
ness immediately after driving in sand,
mud or water. Do this by driving slowly
and stepping on the brake pedal. Repeat
that process several times to dry out the
brake discs and brake pads.y Do not drive or park over or near flam-
mable materials such as dry grass or fall-
en leaves, as they may burn easily. The
exhaust system is very hot while the en-
gine is running and right after engine
stops. This could create a fire hazard.y After driving through tall grass, mud,
rocks, sand, rivers, etc., check that there
is no grass, bush, paper, rags, stones,
sand, etc. adhering to or trapped on the
underbody. Clear off any such matter from
the underbody. If the vehicle is used with
these materials trapped or adhering to the
underbody, a mechanical breakdown or
fire could occur. y Secure all cargo carried inside the vehi-
cle and make certain that it is not piled higher than the seatbacks. During sudden
stops or jolts, unsecured cargo could be
thrown around in the vehicle and cause in-
jury. Do not pile heavy loads on the roof.
Those loads raise the vehicle’s center of
gravity and make it more prone to tip over. y
If you must rock the vehicle to free it
from sand or mud, depress the accelera-
tor pedal slightly and move the selector le-
ver back and forth between “D” and “R” re-
peatedly. Do not race the engine. For the
best possible traction, avoid spinning the
wheels when trying to free the vehicle. y When the road surface is extremely
slippery, you can obtain better traction by
starting the vehicle with the transmission
in 2nd than 1st (both for MT and AT). y Never equip your vehi cle with tires larg-
er than those specified in this manual. y Wash the vehicle’s underbody after off-
road driving. Suspension components are
particularly prone to dirt buildup, so they
need to be washed thoroughly. y Frequent driving of an AWD vehicle un-
der hard-driving condit ions such as rough
roads or off roads will necessitate more
frequent replacement of engine oil, brake
fluid and transmission oil than that speci-
fied in the maintenance schedule de-
scribed 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 listed above is not eligible for warranty coverage.
Winter driving „ Operation during cold weath- er
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 tem-
peratures reduce battery capacity. The
battery must be in good condition to pro-
vide enough power for cold winter starts.
Use an engine oil of proper grade and vis-
cosity for cold weather. Heavy summer oil
will cause harder starting.
Keep the door locks from freezing by
800015

8-28 Driving tips
sary, use 1st gear) in order to utilize the
engine braking effect and prevent over-
heating of your vehicle’s brakes. Do not
make sudden downshifts. yWhen driving uphill in hot weather, the
air conditioner may turn off automatically
to protect the engine from overheating. y When driving uphill in hot weather, pay
attention to the water temperature 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 condi-
tions. If the water temperature gauge
pointer approaches the OVERHEAT zone
or the AT OIL TEMP warning light illumi-
nates, immediately switch off the air con-
ditioner and stop the vehicle at the nearest
safe place. Refer to the “Engine overheat-
ing” section in chapter 9, and “Warning
and indicator lights” section in chapter 3.
NOTE
With AT vehicles, the temperature of
engine coolant is less likely to rise to
the OVERHEAT zone in the “D” posi-
tion than in the manual mode position. y If your vehicle has an automatic trans-
mission, avoid using the accelerator pedal
to stay stationary on an uphill slope in-
stead of using the parking brake or foot
brake. That may cause the transmission fluid to overheat. T
Parking on a grade
Always block the wheels under both vehi-
cle 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 take
the following steps:
1. Apply the brakes and hold the pedal
down.
2. Have someone place wheel blocks un-
der both the vehicle and trailer wheels.
3. When the wheel blocks are in place, re-
lease the regular brakes slowly until the
blocks absorb the load.
4. Apply the regular brakes and then ap-
ply the parking brake; slowly release the
regular brakes.
5. Shift into 1st or reverse gear (manual
transmission) or “P” (automatic transmis-
sion) and shut off the engine.

9-16 In case of emergency
each of the jack-up reinforcements.
„Using a flat-bed truck
This is the best way to transport your vehi-
cle. Use the following procedures to en-
sure safe transportation.
1. Shift the selector lever into the “P” po-
sition for automatic transmission vehicles
or “1st” for manual transmission vehicles. 2. Pull up the parking brake lever firmly.
3. Secure the vehicle onto the carrier
properly with safety chains. Each safety
chain should be equally tightened and
care must be taken not to pull the chains
so tightly that the suspension bottoms out. „
Towing with all wheels on the ground
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.
Use the rear tie-down hooks only for
downward anchoring. If they are
used to anchor the vehicle in any
other direction, cables may slip off
the hooks, possibly causing a dan-
gerous situation.
900033
yNever turn the ignition switch to
the “LOCK” position while the ve-
hicle is being towed because the
steering wheel and the direction
of the wheels will be locked.
900254
yRemember that the brake booster
and power steering do not func-
tion when the engine is not run-
ning. Because the engine is
turned off, it will take greater ef-
fort to operate the brake pedal and
steering wheel.
y If transmission failure occurs,
transport your vehicle on a flat-
bed truck.
y Do not run the engine while being
towed using this method. Trans-
mission damage could result if
the vehicle is towed with the en-
gine running.
y For vehicles with automatic trans-
mission, 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.

11
Maintenance and service
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 ......................................................... 11-19 Recommended spark plugs ................................... 11-19
Drive belts ........................................................... 11-20 2.5-liter models ....................................................... 11-20
3.0-liter models ....................................................... 11-20
Manual transmission oil .................................... 11-20 Checking the oil level ............................................. 11-20
Recommended grade and viscosity ..................... 11-21
Automatic transmission flui d ............................ 11-22
Checking the fluid level .......................................... 11-22
Recommended fluid ............................................... 11-23
Front differential gear oil (AT vehicles) ............ 11-23 Checking the oil level ............................................. 11-23
Recommended grade and viscosity ..................... 11-24
Rear differential gear oil .................................... 11-24 Checking the gear oil level .................................... 11-24
Recommended grade and viscosity ..................... 11-26
Power steering fluid ........................................... 11-27 Checking the fluid level .......................................... 11-27
Recommended fluid ............................................... 11-27
Brake fluid ........................................................... 11-28 Checking the fluid level .......................................... 11-28
Recommended brake fluid ..................................... 11-28
Clutch fluid (MT vehicles) .................................. 11-29 Checking the fluid level .......................................... 11-29
Recommended clutch fluid .................................... 11-29
Brake booster ..................................................... 11-30
Brake pedal ......................................................... 11-30 Checking the brake pedal free play ...................... 11-30
Checking the brake pedal reserve distance ......... 11-30
Clutch pedal (Man ual transmission
vehicles) ........................................................... 11-31 Checking the clutch function ................................ 11-31
Checking the clutch pedal free play ..................... 11-31