Fluid · Engine Oil
Engine Oil
for 1965 GMC 2500 Series 283ci V8 · RWD
Fluid Type
10W-30 or 10W-40 conventional
Spec: API SB/SC
Capacity
5qt
4.73 L
Drain & Refill
5 qt
4.73 L
Change Interval
3,000 mi
4,827 km
Notes
With filter. 1960s GM small block. Modern oils acceptable; use API SN or SP rated 10W-30 for better protection.
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