Fluid · Manual Transmission
Manual Transmission
for 1981 Ford Bronco 300ci I6 · 4WD
Fluid Type
80W-90 GL-4
Spec: API GL-4
Capacity
7qt
6.62 L
Drain & Refill
7 qt
6.62 L
Change Interval
50,000 mi
80,450 km
Data quality
Book-style estimate
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Notes
Ford 4-speed manual (likely T18 or NP435). Do not use GL-5 in manual transmission with brass synchronizers