Fluid · Rear Differential
Rear Differential
for 1980 Oldsmobile 88 305ci V8 · RWD
Fluid Type
80W-90 GL-5
Spec: API GL-5
Capacity
3.5qt
3.31 L
Drain & Refill
3.5 qt
3.31 L
Change Interval
50,000 mi
80,450 km
Notes
GM 8.5" 10-bolt rear axle typical
As an Amazon Associate, OLP earns from qualifying purchases — how we link. This never changes the specs we publish.