225ci I6RWDAUTOMATICgas
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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

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🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years and Jeff Moore · Master Mechanic · 20+ years. Spot an error? Use the Help link above — a human reads every report.
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