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Subaru Legacy III (2000-2003 year). Manual - part 83

LU(H4SO)-6

LUBRICATION

OIL PRESSURE SYSTEM

2. Oil Pressure System

A: SCHEMATIC

LU-00158

(GREEN)

i12

1 2 3

4 5 6

7 8 9 10 11 12 13 14

B21

(GRAY)

1 2

3 4

6 7

9 10

11 12

14 15

17 18

19 20

B36

B4 B5 B6

A4 A5 A6

C5 C6

D4 D5 D6

M1 M2

D1 D2

A1 A2
B1 B2

M4 M5 M6

L4 L5 L6

N5 N6

O4 O5 O6

P4 P5

O1 O2

P1 P2

E4 E5 E6

E1 E2

OIL PRESSURE

ARNING LIGHT

B36

E11

B21

OIL PRESSURE

SWITCH

NO.5

IGNITION

RELAY

SMJ

COMBINATION

METER

i12

BATTERY

LU(H4SO)-7

LUBRICATION

OIL PRESSURE SYSTEM

B: INSPECTION

Step

Value

Yes

CHECK COMBINATION METER.
1) Turn ignition switch to ON. (engine OFF)
2) Check other warning lights.

Does the warning lights go on?

Warning light goes on.

Go to step 2.

Repair or replace
the combination
meter. <Ref. to
IDI-4, INSPEC-
TION, Combina-
tion Meter
System.>

CHECK HARNESS CONNECTOR BETWEEN
COMBINATION METER AND OIL PRES-
SURE SWITCH.
1) Turn ignition switch to OFF.
2) Disconnect connector from the oil pressure

switch.

3) Turn ignition switch ON.
4) Measure the voltage of harness between

the combination meter connector and chas-
sis ground.

Connector & terminal

(E11) No. 1 — Chassis ground:

Does the measured value exceed the spec-
ified value?

10 V

Replace oil pres-
sure switch.

Go to step 3.

CHECK COMBINATION METER.
1) Turn ignition switch to OFF.
2) Remove the combination meter.
3) Measure the resistance of the combination

meter.

Terminal

(i12) No. 3 — (i12) No. 14:

Is the measured value less than the speci-
fied value?

Ω

Replace the har-
ness connector
between combina-
tion meter and oil
pressure switch.

Repair or replace
the combination
meter and the oil
pressure switch
warning light bulb.

LU(H4SO)-8

LUBRICATION

ENGINE OIL

3. Engine Oil

A: INSPECTION

1) Park vehicle on a level surface.
2) Remove oil level gauge and wipe it clean.
3) Reinsert the level gauge all the way. Be sure that
the level gauge is correctly inserted and in the
proper orientation.
4) Remove it again and note the reading. If the en-
gine oil level is below the “L” line, add oil to bring
the level up to the “F” line.
5) After turning off the engine, wait a few minutes
for the oil to drain back into the oil pan before
checking the level.
6) Just after driving or while the engine is warm, en-
gine oil level may show in the range between the
“F” line and the notch mark. This is caused by ther-
mal expansion of the engine oil.
7) To prevent overfilling the engine oil, do not add
oil above the “F” line when the engine is cold.

B: REPLACEMENT

1) Open engine oil filler cap for quick draining of the
engine oil.
2) Drain engine oil by loosening engine oil drain
plug.

3) Replace drain plug gasket.

4) Tighten engine oil drain plug after draining en-
gine oil.

Tightening torque:

44 N·m (4.5 kgf-m, 33 ft-lb)

5) Fill engine oil through filler pipe up to upper point
on level gauge. Make sure that vehicle is placed
level when checking oil level. Use engine oil of
proper quality and viscosity, selected in accor-
dance with the table in figure.

Recommended oil

API classification SL, SJ with the “Energy
Conserving” logo is printed (if you cannot
obtain the oil with SL, SJ or SH grades, you
may use SG, SF grades “ENERGY CON-
SERVING” oil.)
ACEA specification, A1, A2 or A3
CCMC specification, G4 or G5
New API certification mark (Star burse
mark) label is on the container.

Oil amount for preparation (when replacing en-
gine oil):

Approx. 4.0

(4.2 US qt, 3.5 Imp qt)

The proper viscosity helps vehicle get good cold
and hot starting by reducing viscous friction and
thus increasing cranking speed.

CAUTION:
When replenishing oil, it does not matter if the
oil to be added is a different brand from that in
the engine; however, use oil having the ILSAC
or API classification and SAE viscosity No. des-
ignated by SUBARU.

(A) Oil level gauge

(B) Engine oil filler cap

(D) Lower level

(E) Approx. 1.0

(1.1 US qt, 0.9 Imp qt)

LU-00138

(A)

(B)

(C)

(D)

(E)

LU-00094

LU-00008

SAE Viscosity No. and Applicable Temperature

(˚F)

–15

–20

–30

(˚C)

104

–4

–22

10W-30, 10W-40

5W-30 PREFERRED

LU(H4SO)-9

LUBRICATION

ENGINE OIL

NOTE:
If vehicle is used in desert areas with very high tem-
peratures or for other heavy duty applications, the
following viscosity oils may be used: API classifica-
tion: SL, SJ or SH
SAE Viscosity No.: 30, 40, 10W-50, 20W-40, 20W-
50.
6) Close engine oil filler cap.
7) Start engine and warm it up for a time.
8) After engine stops, recheck the oil level. If nec-
essary, add engine oil up to upper level on level
gauge.

(A) Oil level gauge

(B) Engine oil filler cap

(D) Lower level

(E) Approx. 1.0

(1.1 US qt, 0.9 Imp qt)

LU-00138

(A)

(B)

(C)

(D)

(E)

Content .. 81 82 83 84 ..