Recommended oil for Kia Optima automatic transmission:
* Kia ATF SP-III (for models up to 2020)
* Hyundai / Kia Smartstream VIII (for models from 2020)
Viscosity:
* 0W-20
Capacity:
* Approximately 6-8 liters (depending on year of manufacture and engine model)
Replacement interval:
* Every 60,000 km or as recommended by the manufacturer (whichever comes first).
Note:
*Use only genuine Kia ATF or a recommended alternative from a reputable manufacturer.
* Regularly check the level and condition of the oil in the automatic transmission, especially before long trips.
* Do not mix different types of automatic transmission oils.