engine SUBARU IMPREZA 2000 2.G Workshop Manual

10-10
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 mark (Starburst mark) displayed 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
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.

10-12Cooling 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 service10-13
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CONTINUED –

Engine coolant Checking the coolant level
Chec k the c oolant level at eac h fuel stop .
HG0114
“
FULL ”
level mark
“ LOW ”
level mark
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.

10-14
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 in the following p roc ed ur es ac c ord ing to
the maintenanc e sc hed ule in the “Warranty and Maintenanc e Book-
let ”.
1. Plac e a p rop er c ontainer und er the d rain p lug and loosen the d rain
p lug .
HGA000BB
2. 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.

10-167. 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
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

Maintenance and service10-31
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CONTINUED –
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 Concentration
Freezing Temperature
30% 50%
100%10.4 F(–12 C)
–4 F(–20 C)
–49 F(–45 C)
HG0122

10-46
HS0208
HS0207
Fuse puller Fuse puller
Spare fuses
4. Pull out the fuse with the fuse p uller. The fuse p uller is stored in the
main fuse b ox c over in the eng ine c omp artment.
5. Insp ec t the fuse. If it has b lown, rep lac e it wit h a sp are fuse of the
same rating . The sp are fuses are stored in the main fuse b ox c over in
the eng ine c omp artment.
6. If the same fuse b lows ag ain, this ind ic ates that its system has a
p rob lem. Contac t your SUBARU d ealer for rep airs. Main fuse box (in the engine compartment)
1. Turn the ig nition switc h to the “LOCK ” p osition and turn off all elec -
tric al ac c essories.
2. Op en the eng ine hood .
3. Remove the main fuse b ox c over.
4. Determine whic h fuse may b e b lown. The fuse b ox c over and
“ Fuse and c irc uits ” sec tion in c hap ter 11 in this manual show the c ir-
c uit for eac h fuse.

11
Specifications Specifications11-2
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Dimensions 11-2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maximum load limits 11-2
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Engine 11-2
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Electrical system 11-3
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Capacities 11-3
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tires 11-4
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuses and circuits 11-5
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Bulb chart 11-8
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Vehicle identification 11-9
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

11-2Specifications
These sp ec ific ations are sub jec t to c hang e without
notic e.
Dimensions
Overall leng th 172.2 in. (4,375 mm)
Overall wid th 67.1 in. (1,705 mm)
Overall heig ht 56.3 in. (1,430 mm)* 1
55.5 in. (1,410 mm)
Ground c learanc e 6.5 in. (165 mm)* 1
5.7 in. (145 mm)
Front tread 57.5 in. (1,460 mm), 57.9 in. (1,470 mm)*2
Rear tread 57.1 in. (1,450 mm), 57.5 in. (1,460 mm)*2
Wheelb ase 99.2 in. (2,520 mm)
* 1
: OUTBACK
* 2
: RS
Maximum load limits
Gross vehic le weig ht rating See the c ertific ation la b el attac hed
Gross axle weig ht rating to the d river ’s d oor jamb .
Engine
2500 c c 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 149.9 c u in (2,457 c c )
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

Specifications11-7
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CONTINUED –

Fuse panel located in the engine compartment
HS0225Fusible link FWD socket
A S
K L Z X
G H J
DF
Fuse panel
Fuse ratingCircuit
2020A Rad iator c ooling fan (Main)
2120ARad iator c ooling fan (Sub )
2220ARear wind ow d efog g er
2315AHazard warning flasher
Horn
2415APower d oor loc k
2510AAutomatic transmission c ontrol unit
2610AAlternator
2715AHead lig ht (rig ht sid e)
2815AHead lig ht (left sid e)
2920ALig hting switc h
3015ACloc k
Interior lig ht