2000 SUBARU LEGACY engine

Maintenance and service11-11
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CONTINUED –
12. Reinstall the c over und er the oil filter.
13. Pour the sp ec ified amount of eng ine oil throug h
the filler nec k.
Oil c ap ac ity: 4.2 US q t (4.0 liters, 3.5 Imp q t)
14. Start the eng ine and make sure that no oil leak s ap p ear around
the filter ’s rub b er seal.
15. Run the eng ine until it reac hes the normal op er ating temp erature.
Then stop the eng ine and wait a few minutes to allo w the oil d rain
b ac k. Chec k the oil level ag ain and if nec essary, a d d more eng ine oil.
Recommended grade and viscosity CAUTION
Use only engine oil with the recommended grade and viscosity.
Oil grade: API classification SJ or SH with the words “ENERGY
CONSERVING II ” (if you cannot obtain the oil with SJ
or SH grade, you may use SG grade oil.) or the new API certification mark (Starburst mark) dis-
played on the container.
New API Certification Mark (Starburst Mark)API Service label
1
2
3
1 Ind ic ates the oil q uality b y API d esig nations
2 Ind ic ates the SAE oil visc osity g rad e
3 Ind ic ates that the oil has fuel saving c ap ab ilities

Maintenance and service11-13
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CONTINUED –
Cooling system
WARNING
Never attempt to remove the radiator cap until the engine has
been shut off and has cooled down completely. Since the coolantis under pressure, you may suffer serious burns from a spray ofboiling hot coolant when the cap is removed.
CAUTION
The cooling system has been filled at the factory with a high
quality, corrosion-inhibiting, year-around coolant which providesprotection against freezing down to –33F ( –36 C). For adding,
use genuine SUBARU coolant or an equivalent: a mixture of 50%
soft water and 50% ethylene-glycol basis coolant. Use of improp-er coolants may result in corrosion in the cooling system. It is im-portant to maintain protection against freezing and corrosion,
even if freezing temperatures are not expected. Never mix differ-ent kinds of coolant. Do not splash the engine coolant over painted parts. The alco-
hol contained in the engine coolant may damage the paint sur-face.
Hose and connections
Your vehic le emp loys an elec tric c ooling fan whic h is thermostatic ally
c ontrolled to op erate when the eng ine c oolant reac h es a sp ec ific tem-
p erature.
If the rad iator c ooling fan d oes not op erate even w hen the eng ine
c oolant temp erature g aug e exc eed s the normal op erat ing rang e, the
c ooling fan c irc uit may b e d efec tive. Chec k the fus e and rep lac e it if
nec essary. If the fuse is not b lown, have the c ooli ng system c hec ked
b y your SUBARU d ealer.
If freq uent ad d ition of c oolant is nec essary, there may b e a leak in the
eng ine c ooling system. It is rec ommend ed that the c ooling system
and c onnec tions b e c hec ked for leaks, d amag e, or lo oseness.

11-14
Engine coolant Checking the coolant level
Chec k the c oolant level at eac h fuel stop .
HBB004FB
1. Chec k the c oolant level on the outsid e of the res ervoir while the
eng ine is c ool.
2. If the level is c lose to or lower than the “LOW ” level mark, ad d
c oolant up to the “FULL ” level mark. If the reserve tank is emp ty, re-
move the rad iator c ap and refill as req uired .
HG0115
Rubber gaskets
3. After refilling the reserve tank and the rad iator , reinstall the c ap s
and c hec k that the rub b er g askets insid e the rad iat or c ap are in the
p rop er p osition.

Maintenance and service11-15
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CONTINUED –

Changing the coolant
WARNING
Never attempt to remove the radiator cap until the engine has
been shut off and has cooled down completely. Since the coolantis under pressure, you may suffer serious burns from a spray ofboiling hot coolant when the cap is removed.
Chang e the eng ine c oolant using the following p roc e d ures ac c ord ing
to the maintenanc e sc hed ule in the “Warranty and Maintenanc e Book-
let ”.
1. Remove the und er c over.
2. Plac e a p rop er c ontainer und er the d rain p lug and loosen the d rain
p lug .
HBB006BB
3. Loosen the rad iator c ap to d rain the c oolant from the rad iator. Then
d rain the c oolant from the reserve tank. Tig hten th e d rain p lug sec ure-
ly.

Maintenance and service11-17
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CONTINUED –
rad iator
’s filler nec k and to the reserve tank ’s “FULL ” level.
8. Put the rad iator c ap and reservoir c ap b ac k on an d tig hten firmly.
Air cleaner element
WARNING
Do not operate the engine with the air cleaner element removed. The air cleaner element not only filters intake air but also stops
flames if the engine backfires. If the air cleaner element is not
installed when the engine backfires, you could be burned.
The air c leaner element func tions as a filter sc ree n. When the element is
p erforated or removed , eng ine wear will b e exc essiv e and eng ine life
shortened .
The air c leaner element is a visc ous typ e. It is un nec essary to c lean or
wash the element.
Replacing the air cleaner element
Rep lac e the air c leaner element ac c ord ing to the ma intenanc e sc hed -
ule in the “Warranty and Maintenanc e Booklet ”. Und er extremely
d usty c ond itions, rep lac e it more freq uently. It is rec ommend ed that
you always use g enuine SUBARU p arts.
HBA003BB
HBA002BB
BoltAir cleaner element
1. Remove the b olt sec uring the rear air c leaner ele ment c ase.

Maintenance and service11-39
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CONTINUED –

When wheel nuts, b alanc e weig hts, or the c enter c ap rep lac ed , b e
sure to rep lac e them with g enuine SUBARU p arts d esi g ned for aluminum
wheels.
Windshield washer fluid
CAUTION
Never use engine coolant as washer fluid because it could cause paint damage.
Chec k the level of the washer fluid at eac h fuel st op . If the level is low, fill
the fluid up to the nec k of the reservoir.
Use wind shield washer fluid . If wind shield washer f luid is unavailab le use
c lean water.
In areas where water freezes in winter, use an anti -freeze typ e wind shield
washer fluid . SUBARU Wind shield Washer Fluid c ontai ns 58.5% methyl
alc ohol and 41.5% surfac tant, b y volume. Its freezi ng temp erature varies
ac c ord ing to how muc h it is d iluted , as ind ic ated b elow.
Washer Fluid Conc entration
Freezing Temp erature
30% 50%
100%10.4 F ( –12 C)
–4 F ( –20 C)
–49 F ( –45 C)
HBB004IA

12
Specifications Specifications12-2
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Dimensions 12-2
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Engine 12-3
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Electrical system 12-3
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Capacities 12-3
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Tires 12-4
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Wheel alignment 12-5
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Fuses and circuits 12-6
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Fuse panel located behind the coin tray 12-6 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuse panel located in the engine compartment 12-8 . . . . . . . . . . . . . . . . . . .
Bulb chart 12-10
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Vehicle identification 12-11
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Specifications12-3
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CONTINUED –
OUTBACK station wagon
Overall leng th 187.4 in (4,760 mm)
Overall wid th 68.7 in (1,745 mm)
Overall heig ht 62.2 in (1,580 mm)
Ground c learanc e 7.3 in (185 mm)
Front tread 57.9 in (1,470 mm)
Rear tread 57.7 in (1,465 mm)
Wheelb ase 104.3 in (2,650 mm)
Engine 2.5 liter
Eng ine mod el EJ251
Eng ine typ e Horizontally op p osed , liq uid c ooled
4 c ylind er, 4 stroke g asoline eng ine
Eng ine d isp lac ement 2,457 c c (149.9 c u in.)
Bore 3.92 in (99.5 mm)
Stroke 3.11 in (79.0 mm)
Comp ression ratio 10.0 : 1
Firing ord er 1 - 3 - 2 - 4
Electrical system
Battery typ e and c ap ac ity
MT: 55D23L
AT: 75D23L
Alternator 12V-90A
Sp ark p lug s typ e RC10YC4 (Champion) RC8YC4 (Champ ion)
BKR6E-11 (NGK)
K20PR-U11 (NIPPONDENSO)
Capacities
Fuel tank 16.9 US g al (64 liters, 14.1 Imp g al)
Eng ine oil 4.2 US q t (4.0 liters, 3.5 Imp q t)
Transmission oil (MT) 3.7 US q t (3.5 liters, 3.1 Imp q t)
Transmission fluid (AT) 9.8 US q t (9.3 liters, 8.2 I mp q t)