2000 SUBARU IMPREZA Owners Manual

Maintenance and service10-17
–
CONTINUED –
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.
Spark plugs
CAUTION
When disconnecting the spark plug cables, always grasp the
spark plug cap, not the cables. Make sure the cables are replaced in the correct order.
HBA004BA
It may b e d iffic ult to rep lac e the sp ark p lug s. It is rec ommend ed that you
have the sp ark p lug s rep lac ed b y your SUBARU d ealer .
The sp ark p lug s should b e rep lac ed ac c ord ing to the maintenanc e
sc hed ule in the “Warranty and Maintenanc e Booklet ”.

10-18
Recommended spark plugs
NGK
CHAMPIONNIPPONDENSO
BKR6E-11RC10YC4RC8YC4K20PR-U11
Drive belts
The alternator, p ower steering p ump , and air c ond it ioner c omp ressor d e-
p end on d rive b elts. Satisfac tory p erformanc e req ui res that b elt tension
b e c orrec t.
HGA005BB
in. (mm)
Deflec tion
New b eltUsed b elt
10.28 — 0.35
(7.0 — 9.0)0.35 — 0.43
(9.0 — 11.0)
20.30 — 0.33
(7.5 — 8.5)0.35 — 0.40
(9.0 — 10.0)
To c hec k b elt tension, p lac e a straig hted g e (ruler) ac ross two ad jac ent
p ulleys and ap p ly a forc e of 98 N (22 lb , 10 kg ) mi d way b etween the

Maintenance and service10-19
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CONTINUED –
p ulleys b y using a sp ring sc ale. Belt d eflec tion sh
ould b e the amount
sp ec ified . If a b elt is loose, c rac ked , or worn, c o ntac t your SUBARU
d ealer.
Manual transmission oil
Checking the oil level
Chec k the oil level monthly.
1. Park the vehic le on a level surfac e and stop the eng ine.
OM-H0210
HGA006BB
Upper level Lower level
2. Pull out the d ip stic k, wip e it c lean, and insert it ag ain.
3. Pull out the d ip stic k ag ain and c hec k the oil lev el on it. If it is b elow
the lower level, ad d oil throug h the d ip stic k hole to b ring the level up
to the up p er level. Recommended grade and viscosity
Eac h oil manufac turer has its own b ase oils and ad d itives. Never use
d ifferent b rand s tog ether.
Oil grade: API classification GL-5

10-20SAE viscosity No. and Applicable Temperature
OM-H0205
Automatic transmission fluid
Checking the fluid level
The automatic transmission fluid exp and s larg ely as its temp erature
rises; the fluid level d iffers ac c ord ing to fluid t emp erature. Therefore,
there are two d ifferent sc ales for c hec king the lev el of hot fluid and
c old fluid on the d ip stic k.
Thoug h the fluid level c an b e c hec ked without warmi ng up the fluid
on the “COLD ” sid e, we rec ommend c hec king the fluid level when t he
fluid is at op erating temp erature. n Checking the fluid level when the fluid is hot
Chec k the fluid level monthly.
1. Drive the vehic le several miles to raise the temp erature of the
transmission fluid up to normal op erating temp eratu re; 140 to 176F
(60 to 80 C) is normal.
2. Park the vehic le on a level surfac e and set the p arking b rake.
3. First shift the selec tor lever in eac h p osition. Then shift it in the “P ”
p osition, and run the eng ine at id ling sp eed .

Maintenance and service10-21
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CONTINUED –
OM-H0207
HGA007BB
Upper level
Lower levelUpper level
Lower level
4. Pull out the d ip stic k and c hec k the fluid level o n the g aug e. If it is
b elow the lower level on the “HOT ” rang e, ad d the rec ommend ed au-
tomatic transmission fluid up to the up p er level. n Checking the fluid level when the fluid is cold
When the fluid level has to b e c hec ked without time to warm up the
automatic transmission, c hec k to see that the fluid level is b etween
the lower level and up p er level on the “COLD ” rang e. If it is b elow that
rang e, ad d fluid up to the up p er level. Be c areful not to overfill.
Recommended fluid
“ Dexron II ” or “Dexron III ” Type Automatic Transmission Fluid

10-22Front differential gear oil (Automatic transmission vehicles)
Checking the oil level
Chec k the d ifferential oil level monthly.
OM-H0210
HGA008BB
Upper level Lower level
1. Park the vehic le on a level surfac e and stop the eng ine.
2. Pull out the d ip stic k, wip e it c lean, and insert it ag ain.
3. Pull out the d ip stic k ag ain and c hec k the oil lev el on it. If it is b elow
the lower level, ad d oil to b ring the level up to t he up p er level.
Recommended grade and viscosity
Eac h oil manufac turer has its own b ase oils and ad d itives. Never use
d ifferent b rand s tog ether.
Oil grade: API classification GL-5

Maintenance and service10-23
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CONTINUED –
SAE viscosity No. and Applicable Temperature
OM-H0212
Rear differential gear oil
Checking the oil level CAUTION
If the vehicle requires frequent refilling, there may be an oil leak. If you suspect a problem, have the vehicle checked at your
SUBARU dealer.
OM-H0214
OM-H0213
Filler hole
Drain hole Oil level
Filler plug
Drain plug

10-24
HB0078
HB0077
Filler hole
Drain hole Filler hole
Drain hole
Oil level
Remove the p lug from the filler hole and c hec k the oil level. The oil
level should b e kep t even with the b ottom of the fi ller hole. If the oil
level is b elow the b ottom ed g e of the hole, ad d oil throug h the filler
hole to raise the level. Recommended grade and viscosity
Eac h oil manufac turer has its own b ase oils and ad d itives. Never use
d ifferent b rand s tog ether.
Oil grade: API classification GL-5
SAE viscosity No. and Applicable Temperature
OM-H0205