Boy I can tell its starting to get nice out here. Had another friend stop by today and his 2019 Street Glide with 16,000 miles looks like the rear head gasket is leaking.Above the head looks dry.J was looking on here to see if there was a thread on these. Ik there were some oil sumping issues but I didn't know if there were issues with the 19's . ?
Our tech has replaced about 10 rear head gaskets on 2019 models
Replace the head bolts also.
The 2019 service manual will say they are reusable, but the later manuals say they are one time use.
I had the same thing happen to my 2019 Street Glide special. Happened early enough that the dealer replaced it under warranty.