Front & Rear Differential Gear Oil - Subaru IMPREZA 2004 Service Manual

PERIODIC MAINTENANCE SERVICES
18.Front & Rear Differential Gear
Oil
A: REPLACEMENT
1. FRONT DIFFERENTIAL (MT MODEL)
Differential oil works as manual transmission oil to
lubricate differential. Refer to "Transmission Oil".
<Ref. to PM-26, Transmission Gear Oil.>
2. FRONT DIFFERENTIAL (AT MODEL)
1) Drain the differential gear oil by removing drain
®
plug using TORX .
NOTE:
• Before starting work, cool off the differential gear
oil well.
• If front differential gear oil adheres to the exhaust
pipe, wipe it off completely.
2) Replace the gasket with a new one, and then
tighten the drain plug to specified torque.
Tightening torque:
70 N·m (7.1 kgf-m, 51.6 ft-lb)
3) Fill differential gear oil through the oil level
gauge hole up to the upper point of level gauge.
NOTE:
Each oil manufacturer has its base oil and addi-
tives. Thus, do not mix two or more brands.
Recommended gear oil:
GL-5 (75W-90) or equivalent
Front & Rear Differential Gear Oil
PM-00157
PM-30
Differential gear oil capacity:
1.1 — 1.3 2 (1.2 — 1.4 US qt, 1.0 — 1.1 lmp qt)
(A)
(B)
(C)
(A) Oil level gauge
(B) Upper level
(C) Lower level
3. REAR DIFFERENTIAL
1) Drain the oil by removing drain plug.
2) Remove the filler plug or oil temperature switch
for quick draining oil.
3) Install the drain plug after draining oil.
NOTE:
• Apply fluid packing to the drain plug threads for T
type.
Fluid packing:
Three Bond 1105 (Part No. 004403010)
• Use a new aluminum gasket for VA type.
Tightening torque:
T type:
49.0 N·m (5.0 kgf-m, 36.2 ft-lb)
VA type:
34 N·m (3.5 kgf-m, 25.3 ft-lb)
4) After installing the drain plug onto rear differen-
tial gear case firmly, fill oil up fully to the mouth of
filler plug.
T TYPE
(A)
(B)
(A) Filler plug
(B) Drain plug
(A)
PI-00183
PM-00037