Fluid · Engine Oil
Engine Oil
for 1961 GMC Panel 230ci I6 · RWD
Fluid Type
10W-30 or 10W-40 conventional
Spec: API SG or newer (originally API MS)
Capacity
5qt
4.73 L
Drain & Refill
5 qt
4.73 L
Change Interval
3,000 mi
4,827 km
Notes
With filter change. Original spec was API MS or SD; modern SG/SH/SJ suitable for flat-tappet cam
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