Oldsmobile Delta 88, 7th Gen (USA / CAN)
Coolant capacity & service interval
Oldsmobile Delta 88, 7th Gen (USA / CAN) requires coolant with a capacity range of 13,25 to 16,75 liters. The data covers 2 configurations.
The configuration chart below lists fill volumes and service intervals for each engine and trim variant.
| Type | Specifications |
|---|---|
| Delta 88, 350 (1971-1976) |
|
| Delta 88, 455 (1971-1976) |
|
Additional Notes
- The Oldsmobile Delta 88 7th Gen carries coolant system capacities that span a range rather than a single fixed value, which reflects variation across body configurations, heater core routing, and whether air conditioning is fitted.
- The 350 engine variant, covering 1971-1976, has a cooling system capacity range of 13.25 to 15.75 liters under normal use conditions.
- The 455 engine variant, also spanning 1971-1976, carries a slightly wider cooling system capacity range of 13.25 to 16.75 liters under normal use conditions.
- The upper end of the 455's capacity range reaches 16.75 liters, which is 1.0 liter higher than the 350's upper limit of 15.75 liters, consistent with the larger displacement engine generating more heat and requiring a greater coolant volume to manage thermal load.
- Both engine variants share the same lower bound of 13.25 liters, suggesting a common minimum cooling system configuration exists across the two engine options for the 1971-1976 model years.