Fluid · Rear Differential
Rear Differential
for 1968-1969 Mercury Montego 6.4L V8 · RWD
Fluid Type
80W-90 or 85W-140 gear oil
Spec: API GL-5
Capacity
3.5qt
3.31 L
Drain & Refill
3.5 qt
3.31 L
Change Interval
36,000 mi
57,924 km
Notes
9-inch rear axle typical. Use 85W-140 for severe service or high temperature operation. Add friction modifier if limited-slip equipped.
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