455ci V8RWDAUTOMATICgas
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Fluid · Coolant

Coolant

for 1968 Oldsmobile Cutlass S 455ci V8 · RWD
Fluid Type
ethylene glycol green 50/50
Spec: GM 1899-M or equivalent
Capacity
19qt
17.97 L
Drain & Refill
17 qt
16.08 L
Change Interval
24,000 mi
38,616 km

Notes

455 big block V8 with heater. Larger capacity than small blocks. Use conventional green coolant for 1968 vintage

Other fluid systems on this vehicle

🔧 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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