Hey Stone--my '17 UL is still fine and flawless at 10300 miles.
I was at Hideout in Joplin a couple days ago talking to service. He said they are in touch with MoCo about migration, but have no solution yet.
I suggested he check out yours and gave him information to look you up on the forum.
He appeared interested.

Good work, BTW.

I will keep monitoring mine, but I suspect at this point, I don't have much to worry about. I have a bunch of miles planned yet this year--fingers crossed.

 

I just had my independent do the 5K service on my 2018 Road King SE Stage 3 with 4400 miles. Had the service done a bit early since I leave on a
4500 mile round trip to Colorado on Thursday.

He found that the transmission oil level went down to 16 oz. of oil in the 3400 miles ridden since the 1K service. If I find that the transmission oil is low while on the trip,
do I just top it off, or do I need to drain the excess from the Primary as well? What a PITA! I'll for sure need to address this after the trip.

Thanks in advance for your help!

 

Are you using the same fluid in both the primary and transmission? If so I would just add fluid to the transmission as necessary. If you start having a problem with the clutch then you might want to pull some out of the primary.

 

abstract question perhaps..but the 'self resolving' phenomenon is perplexing..mine after 2 years and 24,000 miles has become almost nil..is it possible over time, miles, heat, etc. things get 'gummed up' seal expanding, etc. that explain why it improved instead of worsening?
:

 

Yes, I'm using the same fluid in both. Thank you very much for your fast response!

 

Had my 2017 Limited into the dealer after a 700 mile ride, primary was 13 ounces over, primary had a total of 45 ounces in it and transmission had only 19 ounces. The contacted Tech Services and they are sending a deflector kit out to be installed. We'll see what happens after that.

2017 Limited, 5000 miles.

 

Perplexing for sure, Mine still continues to sit on the add mark. If I add any it drops to the add and sits there. In my case, add is full.

 

Mine has got to the point if I fill to the middle of the F it hardly transfers anything. ---F---. with 20-50 M1 in all three holes.