2004 SUBARU OUTBACK exhaust pipe

7-8
Starting and operating
obligation under federal law to implement stricter vehi-
cle emission standards to reduce air pollution from
cars. A dynamometer is a treadmill or roller-like testing
device that allows your car’s wheels to turn while the
car remains in one place. Depending on the severity of
a state’s air pollution problems, the states must adopt
either a “basic” or “enhanced” vehicle emission in-
spection test. Normally, a portion of the basic emission
test consists of an emission inspector inserting an an-
alyzer probe into the exhaust pipe of an idling vehicle
for a short period of time. States with more severe air
pollution problems are required to adopt an enhanced
vehicle emission test. This test simulates actual driv-
ing conditions on a dynamometer and permits more
accurate measurement of tailpipe emitted pollution
than the basic emission test.
The U.S. Environmental Protection Agency (EPA) and
states using two-wheel dynamometers in their emis-
sion testing programs have
EXEMPTED SUBARU
AWD vehicles from the portion of the testing program
that involves a two-wheel dynamometer.
There are some states that use four-wheel dynamom-
eters in their testing programs. When properly used,
that equipment will not damage an AWD SUBARU ve-
hicle.
Under no circumstances should the rear wheels be jacked off the ground, nor should the driveshaft be dis-
connected for state emission testing.
The EPA has issued regulations for inspecting the On-
Board Diagnostic (OBD) system as part of the state
emissions inspection. The OBD system is designed to
detect engine and transmission problems that might
cause vehicle emissions to exceed allowable limits.
These inspections apply to all 1996 model year and
newer passenger cars and light trucks. Several states
plus the District of Columbia have opted to start the
OBD system inspection prior to the required EPA reg-
ulation effective date of January 1, 2002. Other states
will add OBD system inspection in 2002. y
The inspection of the OBD system consists of a vi-
sual operational check of the “ CHECK ENGINE” warn-
ing light/malfunction indicator lamp (MIL) and an ex-
amination of the OBD system with an electronic scan
tool while the engine is running. y A vehicle passes
the OBD system inspection if
proper the “ CHECK ENGINE ” warning light/MIL illumi-
nation is observed, there is no stored diagnostic trou-
ble 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

8-4
Driving tips
Catalytic converter
y
Avoid fire hazards. Do not drive or park the
vehicle anywhere near flammable materials
(e.g. grass, paper, rags or leaves), because the
catalytic converter operates at very high tem-
peratures.y Keep everyone and flammable materials
away from the exhaust pipe while the engine is
running. The exhaust gas is very hot.
The catalytic converter is installed in the exhaust sys-
tem. It serves as catalyst to reduce HC, CO and NOx
in exhaust gases, thus providing cleaner exhaust.
To avoid damage to the catalytic converter: yUse only unleaded gasoline. Even a small amount
of leaded gasoline will damage the catalytic converter. y Never start the engine by pushing or pulling the ve-
hicle.y Avoid racing the engine.
y Never turn off the ignition switch while the vehicle is
moving.y Keep your engine tuned-up. If you feel the engine
running rough (misfiring, backfiring or incomplete
HS8002BA
UB8029BA

8-9
Driving tips
– CONTINUED –
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
OUTBACK.
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 and may
cause it to stall. TOUTBACK
Because of the AWD feature and higher ground clear-
ance, 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 conven-
tional off-road vehicle nor an all-terrain vehicle. If you
do take your SUBARU off-road, certain common
sense precautions such as the following should be taken: y Make certain that you and all of your passengers
are wearing seat belts. y Carry some emergency equipment, such as a tow-
ing rope or chain, a shovel, wheel blocks, first aid kit
and portable phone or citizens band radio. y Drive carefully. Do not take unnecessary risks by
driving in dangerous areas or over rough terrain. y 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. y
Do not drive across steep slopes. Instead, drive ei-
ther 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.y Avoid sharp turning maneuvers, especially at higher
speeds. y Do not grip the inside or spokes of the steering
wheel. A bad bump could jerk the wheel and injure
your hands. Instead drive with your fingers and
thumbs on the outside of the rim.y 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 com-
pletely through the stream. The water should be shal-
low enough that it does not reach the vehicle’s under-
carriage. Water entering 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; regard-
less of its depth, it can wash away the ground from un-
der your tires, resulting in possible loss of traction and
even vehicle rollover.

8-12
Driving tips
T
Parking in cold weather
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 po-
sition. Instead, observe the following:
1. Place the shift lever in “1” or “R” for manual trans-
mission 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.
When the vehicle has been left parked after use on
roads heavily covered with snow, or has been left
parked during a snowstorm, icing may 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 andABS harness. T
Refueling in cold weather
To help prevent moisture from forming in the fuel sys-
tem and the risk of its freezing, use of an antifreeze ad-
ditive in the fuel tank is recommended 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 extend-
ed period, it is best to have the fuel tank filled to capac-
ity. „ Driving on snowy and icy roads
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 brak-

11 -2 1
2Maintenance and service
– CONTINUED –
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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