Fluid · Manual Transmission
Manual Transmission
for 1959-1964 Studebaker Commander 4.2L I6 · RWD
Fluid Type
SAE 80W-90 GL-4 or SAE 30 motor oil
Spec: API GL-4
Capacity
3.5qt
3.31 L
Drain & Refill
3.5 qt
3.31 L
Change Interval
30,000 mi
48,270 km
Data quality
Calibrated
Platform-calibrated book-style value. Verification program ongoing.
Notes
3-speed manual with column or floor shift. Period spec called for straight 30W motor oil, but GL-4 gear oil is acceptable