Fluid · Engine Oil
Engine Oil
for 1971 Plymouth Cuda 426ci V8 Hemi · RWD
Fluid Type
10W-40 or 20W-50 conventional
Spec: API SE or SF
Capacity
5qt
4.73 L
Drain & Refill
5 qt
4.73 L
Change Interval
3,000 mi
4,827 km
Notes
426 Hemi with filter change. Original spec called for straight 30W or 40W; multi-grade acceptable. Use high-zinc oil for flat-tappet cam protection.
As an Amazon Associate, OLP earns from qualifying purchases — how we link. This never changes the specs we publish.