engine SUBARU OUTBACK 2002 3.G Repair Manual

Driving tips8-5
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The catalytic converter is installed in the exhaust system. It serves as
catalyst to reduce HC, CO and NOx in exhaust gases, thus providing
cleaner exhaust.
To avoid damage to the catalytic converter: Use only unleaded gasoline. Even a small amount of leaded gasoline
will damage the catalytic converter. Never start the engine by pushing or pulling the vehicle.
Avoid racing the engine.
Never turn off the ignition switch while the vehicle is moving.
Keep your engine tuned-up. If you feel the engine running rough (mis-
firing, backfiring or incomplete combustion), have your vehicle checked
and repaired by an authorized SUBARU dealer. Do not apply undercoating or rust prevention treatment to the heat
shield of catalytic converter and the exhaust system.
Periodic inspections
To keep your vehicle in the best condition at all times, always have the
recommended maintenance services listed in the maintenance schedulein the “Warranty and Maintenance Booklet ” performed at the specified
time or mileage intervals.
Driving in foreign countries
When planning to use your vehicle in another country: Confirm the availability of the correct fuel. (Refer to the “Fuel require-
ment” section in chapter 7.)
Comply with all regulations and requirements of each country.

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Driving tips for AWD vehiclesWARNING
Always maintain a safe driving speed according to the road
and weather conditions in order to avoid having an accident on a sharp turn, during sudden braking or under other similar condi-tions. Always use the utmost care in driving – overconfidence be-
cause you are driving an all wheel drive vehicle could easily leadto a serious accident.
OM-H0154
All wheel drive distributes the engine power to all four wheels. AWD
vehicles provide better traction when driving on slippery, wet or snow-
covered roads and when moving out of mud, dirt and sand. By shifting
power between the front and rear wheels, SUBARU AWD can also pro-vide added traction during acceleration, and added engine braking
force during deceleration.
Therefore, your SUBARU AWD vehicle may handle differently than an
ordinary two wheel drive vehicle and it contains some features unique to
AWD. For safety purposes as well as to avoid damaging the AWD sys-tem, you should keep the following tips in mind: An AWD vehicle is better able to climb steeper roads under snowy or
slippery conditions than a two wheel drive vehicle. There is little differ-
ence in handling, however, during extremely sharp turns or sudden brak-

8-8
and otherwise similar to on-road driving conditions. Operating it under other than those conditions could subject the vehicle to excessive
stress which might result in damage not eligible for repair under war-
ranty. If you do take your SUBARU off road, you should review the
common sense precautions in the next section (applicable to the
OUTBACK) for general guidance. But please keep in mind that your
vehicle’s off-road capabilities are more limited than those of the OUT-
BACK.
Never attempt to drive through pools and puddles, or roads flooded
with water. Water entering the engine air intake or the exhaust pipe or
water splashing onto electrical parts may damage your vehicle andmay cause it to stall. OUTBACK
Because of the AWD feature and higher ground clearance, your
Subaru can be driven on ordinary roads or off-road. But please keep
in mind that an AWD Subaru is a passenger car and is neither a con-
ventional off-road vehicle nor an all-terrain vehicle. If you do take your
Subaru off-road, certain common sense precautions such as the fol-lowing should be taken: Make certain that you and all of your passengers are wearing seat
belts. Carry some emergency equipment, such as a towing rope or
chain, a shovel, wheel blocks, first aid kit and portable phone or citi-zens band radio. Drive carefully. Do not take unnecessary risks by driving in danger-
ous areas or over rough terrain. Slow down and employ extra caution at all times. When driving off-
road, you will not have the benefit of marked traffic lanes, banked
curves, traffic signs and the like. Do not drive across steep slopes. Instead, drive either straight up
or straight down the slopes. A vehicle can much more easily tip over
sideways than it can end over end. Avoid driving straight up or down
slopes that are too steep. Avoid sharp turning maneuvers, especially at higher speeds.
Do not grip the inside or spokes of the steering wheel. A bad

Driving tips8-9
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bump could jerk the wheel and injure your hands. Instead drive with your fingers and thumbs on the outside of the rim.If driving through water, such as when crossing shallow streams,
first check the depth of the water and the bottom of the stream bed
for firmness and ensure that the bed of the stream is flat. Drive slowly
and completely through the stream. The water should be shallow
enough that it does not reach the vehicle ’s undercarriage. Water en-
tering the engine air intake or the exhaust pipe or water splashing
onto electrical parts may damage your vehicle and may cause it to
stall. Never attempt to drive through rushing water; regardless of its
depth, it can wash away the ground from under your tires, resulting in
possible loss of traction and even vehicle rollover. Always check your brakes for effectiveness immediately after driv-
ing in sand, mud or water. Do this by driving slowly and stepping on
the brake pedal. Repeat that process several times to dry out thebrake discs and brake pads. Do not drive or park over or near flammable materials such as dry
grass or fallen leaves, as they may burn easily. The exhaust system is
very hot while the engine is running and right after engine stops. This
could create a fire hazard. After driving through tall grass, mud, rock, 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 ad-
hering to the underbody, a mechanical breakdown or fire could occur. Secure all cargo carried inside the vehicle 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
injury. Do not pile heavy loads on the roof. Those loads raise the ve-
hicle’ s center of gravity and make it more prone to tip over.
If you must rock the vehicle to free it from sand or mud, depress
the accelerator pedal slightly and move the selector lever back and
forth between “D” and “R” repeatedly. Do not race the engine. For the
best possible traction, avoid spinning the wheels when trying to freethe vehicle. When the road surface is extremely slippery, you can obtain better

8-10
traction 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.

Driving tips8-11
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Keep the door locks from freezing by squirting them with deicer or glycerin.
Forcing a frozen door open may damage or separate the rubber
weather strips around the door. If the door is frozen, use hot water to
melt the ice, and afterwards thoroughly wipe the water away.
Use a windshield washer fluid that contains an antifreeze solution. Do
not use engine antifreeze or other substitutes because they may dam-age the paint of the vehicle. nBefore driving your vehicle
Before entering the vehicle, remove any snow or ice from your shoes
because that could make the pedals slippery and dangerous.
While warming up the vehicle before driving, check that the accelera-
tor pedal, brake pedal, and all other controls operate smoothly.
Clear away ice and snow that has accumulated under the fenders to
avoid making steering difficult. During severe winter driving, stop
when and where it is safe to do so and check under the fenders peri-
odically. n Parking in cold weather
WARNING
Snow can trap dangerous exhaust gases under your vehicle. Keep snow clear of the exhaust pipe and from around your
vehicle if you park the vehicle in snow with the engine running.
Do not use the parking brake when parking for long periods in cold
weather since it could freeze in that position. Instead, observe the fol-lowing:
1. Place the shift lever in “1” or “R” for manual transmission vehicles,
and in “P” for automatic transmission vehicles.
2. Use tire stops under the tires to prevent the vehicle from moving.
When the vehicle is parked in snow or when it snows, raise the wiper
blades off the glass to prevent damage to them.

8-12
When the vehicle has been left parked after use on roads heavily cov-
ered with snow, or has been left parked during a snowstorm, icingmay develop on the brake system, which could cause poor braking
action. Check for snow or ice buildup on the suspension, disc brakes
and brake hoses underneath the vehicle.
If there is caked snow or ice, remove it, being careful not to damage
the disc brakes and brake hoses and ABS harness. nRefueling in cold weather
To help prevent moisture from forming in the fuel system and the risk
of its freezing, use of an antifreeze additive in the fuel tank is recom-
mended during cold weather.
Use only additives that are specifically designed for this purpose.
When an antifreeze additive is used, its effect lasts longer if the tank is
refilled whenever the fuel level reaches half empty. If your SUBARU is not going to be used for an extended period, it is
best to have the fuel tank filled to capacity. Driving on snowy and icy roads
WARNING
Do not use the cruise control on slippery roads such as snowy or icy roads. This may cause loss of vehicle control.
To prevent skidding and slipping, avoid sudden braking, abrupt ac-
celeration, high-speed driving, and sharp turning when driving on
snowy or icy roads.Always maintain ample distance between your vehicle and the vehicleahead of you to avoid the need for sudden braking.
To supplement the foot brake, use the engine brake effectively to con-
trol the vehicle speed. (Shift into a lower gear when necessary.)
Avoid shifting down abruptly. Such behavior can cause the wheels to
lock, possibly leading to loss of vehicle control.
An anti-lock brake system (ABS) enhances your vehicle ’s braking per-
formance on snowy and icy roads. Refer to the “ABS (Anti-Lock Brake
System)” and “VDC (Vehicle Dynamics Control) system ” section in
chapter 7 for information on braking on slippery surfaces.

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vehicle and may cause rubbing on sharp turns. Listed below is the winter tire size that we recommend.Recommended winter (snow) tire size P215/60R16 Studless
Tire chains
CAUTION
Tire chains cannot be used on tires listed below because of lack
of clearance between the tires and vehicle body. P205/55R16 tires for GT models
P225/60R16 tires for OUTBACK models
P215/60R16 winter (snow) tires for OUTBACK models
Driving on snowy grades or icy roads may require the use of tire chains,
in which case put the chains on the front wheels only. Use only SAE
class S type chains that are of the correct size for your tires so as not to
damage the vehicle body or suspension.
When driving with tire chains, drive at speeds below 19 mph (30 km/h).
When a temporary spare tire is on a front wheel, replace the temporary
spare tire with the rear tire on the same side of the vehicle, and then fit
chains on the front tires.
Always use the utmost care when driving with tire chains – overconfi-
dence because you are driving with tire chains could easily lead to a se-rious accident. Rocking the vehicle
If you must rock the vehicle to free it from snow, sand, or mud, depress the
accelerator pedal slightly and move the selector lever back and forth be-
tween “D” and “R” repeatedly. Do not race the engine. For the best possible
traction, avoid spinning the wheels when trying to free the vehicle.
When the road surface is extremely slippery, you can obtain better trac-
tion by starting the vehicle with the transmission in 2nd than 1st (both for
MT and AT).

8-28
Trailer towing
Your car is designed and intended to be used primarily as a passenger-
carrying vehicle. Towing a trailer puts additional loads on your car’s en-
gine, drivetrain, brakes, tires and suspension and has an adverse effect
on fuel economy.
If you do decide to tow a trailer, your safety and satisfaction depend
upon proper use of correct equipment and cautious operation of your ve-
hicle. Seek the advice of your SUBARU dealer to assist you in purchas-
ing a hitch and other necessary towing equipment appropriate for your
vehicle. In addition, be sure to follow the instructions on correct installa-
tion and use provided by the trailer and other towing equipment
manufacturers.
SUBARU assumes no responsibility for injuries or vehicle damage that
result from trailer towing equipment, or from any errors or omissions in
the instructions accompanying such equipment or for your failure to fol-
low the proper instructions.
Warranties and maintenance
SUBARU warranties do not apply to vehicle damage or malfunction
caused by trailer towing. If you use your vehicle to tow a trailer, more
frequent maintenance will be required due to the additional load.(Refer to “Maintenance schedule under severe driving conditions ” in
the “Warranty and Maintenance Booklet ”.)
Under no circumstances should a trailer be towed with a new vehicle
or a vehicle with any new powertrain component (engine, transmis-
sion, differential, wheel bearings, etc.) for the first 1,000 miles (1,600km) of driving. Maximum load limits
WARNING
Never exceed the maximum load limits explained below. Exceed- ing the maximum load limits could cause personal injury and/or
vehicle damage.

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nDriving with a trailer
You should allow for considerably more stopping distance when
towing a trailer. Avoid sudden braking because it may result in skid-
ding or jackknifing and loss of control. Avoid abrupt starts and sudden accelerations. If your vehicle has a
manual transmission, always start out in first gear and release the
clutch at moderate engine revolution. Avoid uneven steering, sharp turns and rapid lane changes.
Slow down before turning. Make a longer than normal turning
radius because the trailer wheels will be closer than the vehicle
wheels to the inside of the turn. In a tight turn, the trailer could hit yourvehicle. Crosswinds will adversely affect the handling of your vehicle and
trailer, causing sway. Crosswinds can be due to weather conditions or
the passing of large trucks or buses. If swaying occurs, firmly grip the
steering wheel and slow down immediately but gradually. When passing other vehicles, considerable distance is required
because of the added weight and length caused by attaching the
trailer to your vehicle. Backing up with a trailer is difficult and takes practice. When back-
ing up with a trailer, never accelerate or steer rapidly. When turning
back, grip the bottom of the steering wheel with one hand and turn it
to the left for a left turn, and turn it to the right for a right turn.
Left turn Right turn
OM-H2791
If the ABS warning light illuminates while the vehicle is in motion,
stop towing the trailer and have repairs performed immediately by the