Fluid · Manual Transmission
Manual Transmission
for 1957 GMC 150 Series 228ci I6 · RWD
Fluid Type
SAE 90 GL-1 or 80W-90 GL-4
Spec: GL-1 or GL-4
Capacity
3.5qt
3.31 L
Drain & Refill
3.5 qt
3.31 L
Change Interval
24,000 mi
38,616 km
Data quality
Book-style estimate
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Notes
4-speed manual transmission. Original spec was non-EP gear oil; GL-4 acceptable for synchro protection.