2001 SUBARU LEGACY Owners Manual

11-1212. 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: 2.5 liter mod els: 4.2 US q t (4.0 liters, 3.5 Imp q t )
3.0 liter mod els: 6.0 US q t (5.7 liters, 5.0 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 –
In c hoosing an oil, you want the p rop er q uality and
visc osity, as well
as one that will ad d to fuel ec onomy. The following tab le lists the rec -
ommend ed visc osities and ap p lic ab le temp eratures.
When ad d ing oil, d ifferent b rand s may b e used tog et her as long as
they are the same API c lassific ation and SAE visc os ity as those rec -
ommend ed b y SUBARU.
Eng ine oil visc osity (thic kness) affec ts fuel ec ono my. Oils of lower vis-
c osity p rovid e b etter fuel ec onomy. However, in hot weather, oil of
hig her visc osity is req uired to p rop erly lub ric ate the eng ine.
OM-H2756
SAE viscosity numbr and applicable temperature
Recommended grade and viscosity under severe driving conditions
If the vehic le is used in d esert areas, in areas wi th very hig h temp era-
tures, or used for heavy-d uty ap p lic ations suc h as a towing a trailer,
use of oil with the following g rad e and visc osities is rec ommend ed .
API classification SJ or SH: SAE viscosity No.: 30, 40, 10W-50,
20W-40, 20W-50

11-14Cooling 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.

Maintenance and service11-15
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CONTINUED –

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.

11-16
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 .
HBB059BB
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 –
HBB004FB
HBB007BB
4. Slowly p our the c oolant and fill to the rad iator filler nec k and to the
reserve tank ’s “FULL ” level mark. Do not p our the c oolant too q uic kly,
as this may lead to insuffic ient air b leed ing and t rap p ed air in the sys-
tem.
Coolant c ap ac ity: 2.5 liter mod els MT. 7.2 US q t (6.8 liters, 6.0 Imp q t)
AT. 7.1 US q t (6.7 liters, 5.9 Imp q t)
3.0 liter mod els 8.1 US q t (7.7 liters, 6.7 Imp q t)
HG0115
Rubber gaskets
5. Put the rad iator c ap b ac k on and tig hten firmly. At this time, make
sure that the rub b er g asket in the rad iator c ap is c orrec tly in p lac e.
6. Start and run the eng ine for more than five minut es at 2,000 to
3,000 rp m.

11-187. Stop the eng ine and wait until the c oolant c ools
d own (122 to
140 F [ 50 to 60 C] ). If there is any loss of c oolant, ad d c oolant t o the
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.

Maintenance and service11-19
–
CONTINUED –
n
2.5 liter models
HBA003BB
HBA002BB
BoltAir cleaner element
1. Remove the b olt sec uring the rear air c leaner ele ment c ase.
2. Unsnap the three c lamp s hold ing the rear air c lea ner element
c ase.
3. Sep arate the rear air c leaner element c ase from t he front air c lean-
er element c ase and remove the air c leaner element.
4. Clean the insid e of the front and rear air c leane r element c ases
with a d amp c loth and install a new air c leaner ele ment.
5. Insert the four p rojec tions on the rear air c lean er element c ase into
the slits on the front air c leaner element c ase and snap the three
c lamp s on the rear air c leaner element c ase and the n tig hten the b olt.
n 3.0 liter models
HBB056BA
1. Unsnap the two c lamp s hold ing the air c leaner c as e c over.