Quick answer: the 2021–2024 Kia K5 1.6L Turbo takes 5.07 US qt (4.8 L) of oil at an oil change. The 2.5L Turbo (GT) and the 2025 2.5L take 6.1 US qt (5.8 L). Kia specifies full synthetic 0W-20, and 0W-30 for the 2.5L Turbo.
| Engine | Oil capacity (drain and refill) | Oil type |
|---|---|---|
| 1.6L Turbo GDI (2021–2024) | 5.07 US qt (4.8 L) | Full synthetic 0W-20 (API SN PLUS/SP or ILSAC GF-6) |
| 2.5L GDI (2025) | 6.1 US qt (5.8 L) | Full synthetic 0W-20 (API SN PLUS/SP or ILSAC GF-6) |
| 2.5L Turbo GDI (GT) | 6.1 US qt (5.8 L) | Full synthetic 0W-30 (API SN PLUS/SP or ILSAC GF-6) |
Check your engine. The 2025 K5 replaced the 1.6 Turbo with a 2.5L that takes about a quart more.
Oil capacity by year
| Model year | 1.6L Turbo | 2.5L | 2.5L Turbo |
|---|---|---|---|
| 2022 | 4.8 L | — | 5.8 L |
| 2025 | — | 6.1 qt (5.8 L) | see note |
We read the “Recommended lubricants and capacities” tables of the 2022 and 2025 manuals.
Recommended oil type
1.6T and 2.5L: full synthetic SAE 0W-20.
2.5L Turbo (GT): full synthetic SAE 0W-30.
How to reset the oil change reminder on the 2021–2025 Kia K5
See also: Oil life reset by brand.
Kia handles the oil reminder through the Service Interval item in the instrument cluster’s User Settings. There you can turn the reminder on or off and set the interval in miles and months; newer manuals also add a Reset option. Use it after each oil change so the next reminder counts from the right point.
Oil change tips
- 1.6T: one 5-quart jug, just enough.
- 2.5L / 2.5T: a 5-quart jug plus one or two quarts.
- Kia lists a “drain and refill” volume. After refilling, run the engine briefly, turn it off, wait a few minutes and check that the level is between the F and L marks on the dipstick before adding more.
Sources and how we checked
All capacities and oil grades on this page come from Kia’s owner’s manuals for the U.S. market, published on Kia’s official owner’s manual site (section “Recommended lubricants and capacities”):
If your owner’s manual shows something different, follow your manual and tell us.
Last checked: October 26, 2026.
FAQ
How much oil does a Kia K5 take?
4.8 L (5.07 US qt) for the 1.6L Turbo and 5.8 L (6.1 US qt) for the 2.5L and 2.5L Turbo.
What oil does a K5 use?
Full synthetic 0W-20 for the 1.6T and 2.5L; full synthetic 0W-30 for the 2.5L Turbo GT.
Does the K5 GT use different oil?
Yes, the 2.5L Turbo uses 0W-30.
Is a 5-quart jug enough for a K5?
For the 1.6T, just. For the 2.5 engines you need about 6 quarts.
How do I reset the oil light on a K5?
In the cluster User Settings, open Service Interval and reset it.
Older model: see the 2016–2020 Kia Optima oil type and capacity.