Opel Admiral
Coolant capacity & service interval
The Opel Admiral coolant capacity ranges from 8.3 to 11 liters depending on the configuration. The data covers 5 different configurations.
The configuration chart below lists fill volumes and service intervals for each engine and trim variant.
| Type | Specifications |
|---|---|
| Admiral 2.8 E (1969-1977) |
|
| Admiral 2.8 H (1969-1977) |
|
| Admiral 2.8 S (1969-1977) |
|
| Admiral 2.8 (1966-1968) |
|
| Admiral 2.6 (1964-1966) |
|
Additional Notes
- The Opel Admiral 2.6 (1964-1966) carries a cooling system capacity of 11 liters, which is notably higher than all later Admiral variants and reflects the larger thermal management demands associated with the 2.6-liter engine configuration of that generation.
- When the Admiral moved to the 2.8-liter engine in 1966-1968, the cooling system capacity dropped to 8.7 liters, a reduction of more than 2 liters compared to the preceding 2.6-liter model.
- The Admiral 2.8 E (1969-1977) carries a cooling system capacity of 8.5 liters, placing it slightly above the 2.8 H and 2.8 S variants of the same production period.
- Both the Admiral 2.8 H and 2.8 S, produced across 1969-1977, share an identical cooling system capacity of 8.3 liters, despite being distinct engine variants within the same model range.
- Across the three 1969-1977 Admiral variants, cooling system capacities span a narrow range of 8.3 to 8.5 liters, with a difference of only 0.2 liters between the 2.8 E and the 2.8 H and 2.8 S configurations.
- All five Admiral configurations carry normal-use designations for their cooling system specifications, meaning the listed capacities apply under standard operating conditions rather than severe or first-fill scenarios.