Fluid · Coolant
Coolant
for 1978 Oldsmobile Toronado 403ci V8 · FWD
Fluid Type
Ethylene glycol 50/50
Spec: GM 1899-M
Capacity
20qt
18.92 L
Drain & Refill
18 qt
17.03 L
Change Interval
24,000 mi
38,616 km
Data quality
Book-style estimate
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Notes
Use GM approved coolant or ethylene glycol with proper inhibitors. Large displacement engine requires substantial cooling capacity