Fluid · Engine Oil
Engine Oil
for 1965 Pontiac GTO 389ci V8 Tri-Power · RWD
Fluid Type
10W-30 or 10W-40 conventional
Spec: API SG or higher
Capacity
5qt
4.73 L
Drain & Refill
5 qt
4.73 L
Change Interval
3,000 mi
4,827 km
Notes
389 Tri-Power V8. Period-correct would be straight 30W or 10W-30. Capacity with filter.
As an Amazon Associate and Autel/ANCEL partner, OLP earns from qualifying purchases — how we link. This never changes the specs we publish.