Hummer H2 coolant capacity
Total cooling-system coolant capacity for the Hummer H2, by generation and engine, in quarts and liters.
| Engine | Capacity | Liters |
|---|---|---|
| 6.0 V8 | 17.2 qt | 16.3 L |
| 6.2 V8 Flex-power | 15.4 qt | 14.6 L |
Capacity is the full cold-fill for the whole system. Top up to the marked level and use the coolant type specified in your owner's manual. Source.