Fluid · Engine Oil
Engine Oil
for 1974 Plymouth Valiant 225ci I6 · RWD
Fluid Type
10W-40 or 10W-30 conventional
Spec: API SF or newer (modern equivalent)
Capacity
5qt
4.73 L
Drain & Refill
5 qt
4.73 L
Change Interval
3,000 mi
4,827 km
Notes
Includes filter. 225 Slant Six standard in 1974. Use modern oil with zinc additives for flat tappet cam protection
As an Amazon Associate, OLP earns from qualifying purchases — how we link. This never changes the specs we publish.