Hongqi H9
Coolant capacity & service interval
Hongqi H9 coolant specifications cover a capacity range of 9 to 12 liters. The data includes four configurations. The fluid type specified is coolant for normal use.
The configuration chart below lists fill volumes and service intervals for each engine and trim variant.
| Type | Specifications |
|---|---|
| H9 2.0T (2024- ) |
|
| H9 2.5T (2024- ) |
|
| H9 3.0T (2024- ) |
|
| H9+ 3.0T (2023- ) |
|
Additional Notes
- The Hongqi H9 2.0T, starting from 2024, carries a cooling system capacity of 9 liters, which is the smaller of the two capacity figures present across the H9 lineup.
- The 3-liter difference between the 2.0T and the larger-displacement engines reflects the greater thermal mass and additional cooling circuit volume typically associated with larger or more complex powerplants.
- The H9 2.5T and H9 3.0T, both starting from 2024, share an identical cooling system capacity of 12 liters, indicating no meaningful difference in cooling circuit volume between those two engine variants.
- The H9+ 3.0T, with a starting year of 2023, also carries a 12-liter cooling system capacity, placing the H9+ variant in alignment with the standard H9 2.5T and 3.0T on coolant volume.
- All four configurations list normal use conditions, meaning the stated capacities apply to standard operating environments rather than severe-duty or special-case service scenarios.
- A 12-liter cooling system capacity is a relatively high figure for a passenger sedan, suggesting an extended cooling circuit that may serve additional components such as a turbocharger cooling loop or cabin heating system beyond the engine block alone.