2005 Kia Optima coolant capacity
The 2005 Kia Optima holds about 6.7 to 7.3 quarts of coolant, depending on the engine - the full cooling-system capacity when cold.
Key takeaways
- The 2005 Kia Optima holds about 6.7 to 7.3 quarts of coolant total, depending on engine.
- This is the full cooling-system fill with the engine cold.
- Refill to the marked level, and use the coolant type your owner's manual specifies.
| Engine | Capacity | Liters |
|---|---|---|
| 2.4 DOHC (USA) | 6.7 qt | 6.3 L |
| 2.7 DOHC (USA) | 7.3 qt | 6.9 L |
When refilling, add coolant to the marked level rather than forcing in the full figure. Source.