I see new 2022 / 2023 engines from Hyundai / Kia have gone to the combo DFI + MPI engine designs (should be a big improvement in keeping intake valves clean !) ... I have not seen what grade oils Hyundai recommends with these engines - but it stands to reason you may possibly be able to safely extend the OCI versus the former DFI engines which require lower mile OCI's due to soot and fuel dilution from the straight DFI engine design ... Then again , the new for them DFI + MPI engine designs may only help to keep intake valves clean with the added MPI ?