I believe Hyundai/Kia asks customers to bring the cars for oil service between 3k to 5k. But again I would recommend go with car manual or call 1800 number on your car (they stick every where door, window).
I believe it every 3000 miles for regular oil or 5000 for high .mileage oil
Depending upon the oil type anywhere from 3000 to 5000 miles. I have a 2019 Optima I do every 3000.
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