Fluid · Rear Differential
Rear Differential
for 1984 Buick LeSabre 350ci V8 · RWD
Fluid Type
80W-90 GL-5 gear oil
Spec: API GL-5
Capacity
4qt
3.78 L
Drain & Refill
4 qt
3.78 L
Change Interval
50,000 mi
80,450 km
Notes
GM 8.5" rear axle typical with 350 V8. Limited slip requires friction modifier additive if equipped.
As an Amazon Associate, OLP earns from qualifying purchases — how we link. This never changes the specs we publish.