2003 SUBARU BAJA Service

Climate control4-13
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Cooling and dehumidifying in high humidity and low tempera- ture weather condition
Under certain weather conditions (high relative humidity, low tempera-
tures, etc.) a small amount of water vapor emission from the air outlets
may be noticed. This condition is normal and does not indicate any
problem with the air conditioning system. Air conditioner compressor shut-off when engine is heavily loaded
To improve acceleration and gas mileage, the air conditioner com-
pressor is designed to temporarily shut off during air conditioner op-
eration whenever the accelerator is fully depressed such as duringrapid acceleration or when driving on a steep upgrade. Refrigerant for your climate control system
Your air conditioner uses ozone friendly refrigerant HFC134a. There-
fore, the method of adding, changing or checking the refrigerant is
different from the method for CFC12 (freon). Consult your SUBARU
dealer for service. Repairs needed as a result of using the wrong
refrigerant are not covered under warranty.
Air filtration system (if equipped) If your vehicle ’s air conditioning system is equipped with a optional air
filtration system, replace the filter element according to the replacement
schedule shown below. This schedule should be followed to maintain the
filter’ s dust collection ability. Under extremely dusty conditions, the filter
should be replaced more frequently. Have your filter checked or
replaced by your SUBARU dealer.
Replacement schedule: Every 12 months or 9,300 miles (15,000 km) whichever comes first
NOTE The filter can influence the air conditioning, heating and defroster performance if not properly maintained.

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FuelCAUTION
Use of a fuel which is low in quality or use of an inappropriate fuel additive may cause engine damage.
Fuel requirements
The 2.5 Liter engine is designed to operate using unleaded gasoline with
an octane rating of 87 AKI or higher.
Fuel octane rating
This octane rating is the average of the Research Octane and Motor
Octane numbers and is commonly referred to as the Anti Knock Index(AKI).Using a gasoline with a lower octane rating can cause persistent and
heavy knocking, which can damage the engine. Do not be concerned
if your vehicle sometimes knocks lightly when you drive up a hill or
when you accelerate. See your dealer or a qualified service techni-
cian if you use a fuel with the specified octane rating and your vehicle
knocks heavily or persistently. Unleaded gasoline
The neck of the fuel filler pipe is designed to accept only an unleaded
gasoline filler nozzle. Under no circumstances should leaded gaso-
line be used because it will damage the emission control system and
may impair driveability and fuel economy. Gasoline for California-certified LEV
Your vehicle was certified to California ’s low emission vehicle (LEV)
standards as indicated on the underhood tune-up label. It is designed
to optimize engine and emission control system performance with
gasoline that meets the clean burning low-sulfur California gasoline
specifications. If you live in any other state than California, your ve-hicle will operate on gasoline meeting Federal specifications. Gaso-
line sold outside California is permitted to have higher sulfur levels,
which may affect the performance of your vehicle ’s catalytic converter

Starting and operating7-3
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and may produce a sulfur exhaust odor or smell. SUBARU recom-
mends that you try a different brand of unleaded gasoline having low-
er sulfur to determine if the problem is fuel related before returningyour vehicle to an authorized dealer for service. Gasoline for cleaner air
Your use of gasoline with detergent additives will help prevent depos-
its from forming in your engine and fuel system. This helps keep your
engine in tune and your emission control system working properly,
and is a way of doing your part for cleaner air. If you continuously use
a high quality fuel with the proper detergent and other additives, youshould never need to add any fuel system cleaning agents to your
fuel tank.
Many gasolines are now blended with materials called oxygenates.
Use of these fuels can also help keep the air cleaner. Oxygenated
blend fuels, such as MTBE (Methyl Tertiary Butyl ether) or ethanol(ethyl or grain alcohol) may be used in your vehicle, but should con-
tain no more than 15% MTBE or 10% ethanol for the proper operationof your SUBARU.
In addition, some gasoline suppliers are now producing reformulated
gasoline, which is designed to reduce vehicle emissions. SUBARU
approves the use of reformulated gasoline.
If you are not sure what the fuel contains, you should ask your service station operators if their gasoline contains detergents and oxygenates
and if they have been reformulated to reduce vehicle emissions. As additional guidance, only use fuels suited for your vehicle as ex-
plained below. Fuel should be unleaded and have an octane rating no lower than
that specified in this manual. Methanol (methyl or wood alcohol) is sometimes mixed with un-
leaded gasoline. Methanol can be used in your vehicle ONLY if it
does not exceed 5% of the fuel mixture AND if it is accompanied by
sufficient quantities of the proper cosolvent and corrosion inhibitors
required to prevent damage to the fuel system. Do not use fuel con-

7-4
taining methanol EXCEPT under these conditions.
If undesirable drivability problems are experienced and you sus-
pect they may be fuel related, try a different brand of gasoline before
seeking service at your SUBARU dealer. Fuel system damage or drivability problems which result from the
use of improper fuel are not covered under the SUBARU Limited War-
ranty.
Fuel filler door and cap Refueling
WARNING
Gasoline vapor is highly flammable. Before refueling, always
first stop the engine and make sure that there are no lighted ciga- rettes, open flames or electrical sparks in the adjacent area. When opening the cap, do not remove the cap quickly. Fuel
may be under pressure and spray out of the fuel filler neck espe-
cially in hot weather, which may cause injury. Never fill gasoline containers on the cargo bed. Static electric-
ity may ignite gasoline vapor when filling portable containers.
Approved containers must be removed from the vehicle and
placed on the ground when filling.Do not fill any portable container on a vehicle.
CAUTION
Never add any cleaning agents to the fuel tank. The addition of
a cleaning agent may cause damage to the fuel system. Make sure that the cap is tightened until it clicks to prevent
fuel spillage in the event of an accident. Do not let fuel spill on the exterior surfaces of the vehicle.
Fuels may cause paint damage, which is not covered under the
SUBARU Limited Warranty. Always use a genuine SUBARU fuel filler cap. If you use the
wrong cap, it may not fit or have proper venting, and your fuel

Starting and operating7-7
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At state inspection time, remember to tell your inspection or service
station in advance not to place your Subaru AWD vehicle on a two-
wheel dynamometer. Otherwise, serious transmission damage willresult.
Some states have started using dynamometers in their state inspection
programs in order to meet their obligation under federal law to implement
stricter vehicle 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 inspection test. Nor-
mally, a portion of the basic emission test consists of an emission
inspector inserting an analyzer 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 driving 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 emission testing programs haveEXEMPTED Subaru AWD vehicles from the portion of the testing pro-
gram that involves a two-wheel dynamometer.
There are some states that use four-wheel dynamometers in their testing
programs. When properly used, that equipment will not damage an AWD Subaru vehicle.
Under no circumstances should the rear wheels be jacked off the
ground, nor should the drive shaft be disconnected 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 sys-
tem is designed to detect engine and transmission problems that mightcause vehicle emissions to exceed allowable limits. These inspectionsapply to all 1996 model year and newer passenger cars and light trucks. The inspection of the OBD system consists of a visual operational

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check of the “CHECK ENGINE ” warning light/malfunction indicator lamp
(MIL) and an examination of the OBD system with an electronic scan tool while the engine is running. A vehicle passes
the OBD system inspection 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. 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 ENGINE ”
warning light/MIL illuminated. 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 three. 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. 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 be-
fore you start driving.
1. Check that all windows, mirrors, and lights are clean and unob- structed.
2. Check the appearance and condition of the tires. Also check tires for
proper inflation.
3. Look under the vehicle for any sign of leaks.
4. Check that the hood is 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 theirseatbelts.
8. Check the operation of the warning and indicator lights when the igni-
tion switch is turned to the “ON” position.

Driving tips8-5
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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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nTires
WARNING
Never tow a trailer when the temporary spare tire is used. The temporary spare tire is not designed to sustain the towing load.
Use of the temporary spare tire when towing can result in failureof the spare tire and/or less stability of the vehicle.
Make sure that all the tires on your vehicle are properly inflated.
The recommended cold tire pressure under trailer towing conditions
is indicated on the tire placard located under the door striker on the
driver’ s side. Adjust the rear tire pressure to the recommended pres-
sure shown on the tire placard when the tires are cold. Normal pres-
sure should be maintained in the front tires.
Trailer tire condition, size, load rating and proper inflation pressure
should be in accordance with the trailer manufacturer ’s specifications.
In the event your vehicle gets a flat tire when towing a trailer, ask a
commercial road service to repair the flat tire.
If you carry a regular size spare tire in your vehicle or trailer as a pre-
caution against getting a flat tire, be sure that the spare tire is firmly
secured. Trailer towing tips CAUTION
Never exceed 45 mph (72 km/h) when towing a trailer in hilly
country on hot days. When towing a trailer, steering, stability, stopping distance and
braking performance will be different from normal operation. For
safety’ s sake, you should employ extra caution when towing a
trailer and you should never speed. You should also keep the fol-lowing tips in mind: