I personally don't know anyone using the new
HD tranny/primary lube. I currently have
Redline Shockproof in the tranny & it's the best I have tried, so far, after 5,000 miles of use, it looks perfect & the tranny just loves it. I have
HD Formula + in the primary & have 1 more quart to use, then it gets Redline primary lube.
If I was concerned about thr tranny to primary migration issue, I would run the same in both holes. I had Lucas full synthetic 20w50 motorcycle oil in all 3 for a while and my FW performed well & better than the HD Syn 3 they used at the 1,000 mile service. The Redline is just better for the tranny.
I run Redline 20-60 in the motor , Shockproof heavy in the trans and Formula +in the primary, I have been wanting to try HD Gear Oil 80-140 in the primary, Local dealer still does not carry it. But I would like to hear from anyone that is using it in there primary and what they have to say about it. Thanks Doc
I easily have enough fluids for the next 2-3 years & need to stop finding good deals.
In honor of Jack's love for oil threads, I will be starting a 2020 holiday oil thread around Xmas, so stay tuned. I would like for everyone to chime in with their favorites.