Kia K4 coolant capacity
Total cooling-system coolant capacity for the Kia K4, by generation and engine, in quarts and liters.
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Sources: Kia Owner's Manual - Recommended Lubricants and Capacities (2024 model), 2019 Kia Optima Owner's Manual, dealer-hosted copy of official Kia manual. Shop links go to Amazon, and we may earn a commission at no extra cost to you.
| Engine | Capacity | Liters |
|---|---|---|
| 1.6L 4-cyl turbo | 7.6 qt | 7.2 L |
| 2.0L 4-cyl | 6.3 qt | 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.