THERMOSTAT
All models use a thermostat that starts to open at 195°F (91°C), and is fully open at 222°F (106°C).
PRESSURE CAP
All models use a 15 psi (1.0 kg/cm 2 ) pressure cap which should be tested at 14-17 psi (.9-1.2 kg/cm 2 ).
WATER PUMP
Water pump is serviced only as an assembly.
MAINTENANCE
Inspect cooling system every 12 months or 15,000 miles. Drain and flush cooling system every 24 months or 30,000 miles.
COOLANT
Note. Approximate capacity figures are shown. They may vary 15% due to system variations. Capacities include coolant reservoir (filled to ADD mark).
| Application | Qts. (L) | |
|---|---|---|
| Calais | ||
| 2.5L | 8.0 (7.5) | |
| 3.0L | 10.3 (9.7) | |
| Ciera | ||
| 2.5L | 9.4 (8.9) | |
| 2.8L | 11.8 (11.2) | |
| 3.8L | 12.0 (11.4) | |
| Cutlass Supreme & Cutlass Cruiser | ||
| 3.8L | 13.0 (12.3) | |
| 5.0L | 14.9 (14.1) | |
| Firenza | ||
| 2.0L VIN K | 8.0 (7.5) | |
| 2.0L VIN 1 | 9.5 (9.0) | |
| 2.8L | 10.7 (10.1) | |
| Toronado | ||
| 3.8L | 12.0 (11.4) | |
| Delta 88 | ||
| 3.8L | 13.2 (12.6) | |
| Ninety-Eight | ||
| 3.8L | 12.4 (11.7) | |
OLDSMOBILE COOLANT CAPACITY