Ethylene glycol-based 50/50 mix or plain water with rust inhibitor
Capacity
17qt
16.08 L
Drain & Refill
16 qt
15.14 L
Change Interval
24,000 mi
38,616 km
Notes
Original systems used plain water or light antifreeze. Modern ethylene glycol is acceptable. Large capacity cooling system typical of period flathead engines
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