First, good to have you back 51.
Quote:
If OEM filter I'll go 5-6k and if ULTRA I'll go 2 5-6k oci's....
Imo, either plan will work. The Ultra will be more efficient and will work fine for the two ocis you note, same as it did for me for 14k miles and 32 months on my Tacoma.
OEM not noted for their efficiency according to the Hyundai you tube info, but a well made filter and well thought of here.
With no warranty to consider, your call. Just depends on whether you want to change the filter each time or run the FU twice. Don't think you can go wrong with either.