Fluid · Engine Oil
Engine Oil
for 1968 Plymouth Road Runner 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
With filter. Hemi engines often ran heavier oil due to higher performance. Factory recommended 10W-40 minimum.
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