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I used to follow the 10K service. But have switched to all three holes every 5,000 miles. I use Castrol Actevo 20W50. It's part synthetic. You can purchase 3 one gallon jugs for $65 bucks on Amazon with free shipping if you have Prime. I also use Bel Ray 85W140 in the tranny with no trouble finding neutral, and Bel Ray primary oil. I'd rather be preventative than face a major repair. Just my 2 cents worth.
US Army, SGM Retired
Patriot Guard Riders, Legion Riders, HOG Member
Dignity, Honor, and Respect, Never Forget
Makes two of us. Always put fresh oil in when I have to put it to bed for the winter even if under 5KOriginally Posted by Zammy
I do all 3 at the same time. 5000 miles. I have a bunch of bikes and that has always been my rule. Not sure what the deal will be with the M8 and the migration issue. Just traded my 2018 Street Glide Special in for a new Tri-Glide. I had 5000 at trade in and used the dino Harley oil and Formula+ at 1000. At the time I saw no indication of the migration issue. We'll see with the Tri-Glide, I like synthetics but hate the thought of migrating a heavier oil from primary to engine or vice versa.
Side note: Harley says mixing SYN3 and dino oils can cause tranny wear, if I read that correctly. So I may rethink my oil choices from the past.
[SIGPIC][/SIGPIC]
SYN3 is NOT a full synthetic oil so Dino oil should mix OK with it
That said I have NEVER run engine oil in any of my trannys and never had any problems
Harley has a new Tranny lube that you can run in the tranny and primary you may check this out
Nuff Said," Were Burnin Daylight, Lets Ride"(Sober 37 years)
Current ride : 2021 FREEWHEELER M8, oldest ride 1960 FL
I recently changed what goes in my tranny.
My last couple of Harley's I just dumped Syn-3 in all three holes. It was easier and it seemed to work fine. Then I got the 2019 M8 and discovered I had a migration issue. Along with that I think the tranny in the M8 just makes more noise overall.
Service guy at Four Rivers (Paducah), who got me in and took care of my migration issue this week, rides a 2001 Harley. He has used Bellray in his tranny and has something like 300,000 miles on that bike! Since they were doing the migration kit I had them do the 10,000 miles service and asked for his recommendation. So I left there with Syn-3 in the engine and primary, and Bellray in the tranny.
Rode just over 320 miles home in 90 degree temps and there was a huge difference. Tranny was quieter and even though it still had some of the "Harley clunk" when shifting, it shifted much smoother and N was much easier to find.
Current: 2019 Trike (custom 130ci T-Man kit with Darkhorse bottom end)
Has anyone used this and if so do you notice a difference in the primary ?
Has anyone used this in there primary and if so what do you think about it >?SYN3 is NOT a full synthetic oil so Dino oil should mix OK with it
That said I have NEVER run engine oil in any of my trannys and never had any problems
Harley has a new Tranny lube that you can run in the tranny and primary you may check this out
Anyone tried this in the primary ?
2019 Red and Silver Tri Glide
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 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.
2017 Harley Davidson Freewheeler (107 cu.in. vivid black).
so now HD is saying its okay to put 80-140 lube in the primary
might help that compensator issue
Stallion #406 // 2013 Tri-Glide
The last 2 changes, I used the HD Heavy Synthetic Gear Oil in my tranny and primary. Seems to work just fine. Shifts good, and easy finding Neutral.
2022 Tri-Glide Black.
Red Line 3 Holes
End of Oct 2018, I switch to Red Line 20W50 Engine, Shockproof for Tranny and their Gear Oil for the Primary. I've since put a total of 8,933 miles on the trike, with two oil changes in less than 5k increments. When last checked over a week ago, the trans fluid still had that same vibrant pepto bismol color.
So unless I put on a lot more miles under really harsh riding conditions or problems surface during periodic checks, I'm sticking with 12 mos or 10k for tranny and primary fluid changes.
It doesn't appear to be broke, so no reason for me spend extra dollars to fix a nonproblem.
2016 Tri Glide Billet Silver w/Pinstripes ["Hi-Yo, Silver! Away!"]
• "There is so much good in the worst of us, and so much bad in the best of us, that it ill behooves any of us to find fault with the rest of us." ..... James Truslow Adams
• 2nd BN 33rd Armor "The Tiger Battalion" "1972 - 1974"
Redline, in all three
I've been using Redline for years.
All three every other oc. Just easier to remember
2021 Mustang GT Premium A10 Handling Pkg
Red White and BBQ Texas, it's whole whole nother country .........
[SIGPIC][/SIGPIC]
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 DocI 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.
2019 Red and Silver Tri Glide
The only reviews I've read so far, on Harley's Heavy Sync Gear Oil, are the ones posted on the HD Online Stores Review Page.
2016 Tri Glide Billet Silver w/Pinstripes ["Hi-Yo, Silver! Away!"]
• "There is so much good in the worst of us, and so much bad in the best of us, that it ill behooves any of us to find fault with the rest of us." ..... James Truslow Adams
• 2nd BN 33rd Armor "The Tiger Battalion" "1972 - 1974"
I have not found it yet to try it. Thanks
2019 Red and Silver Tri Glide
With my prepaid maintenance plan at Space Coast HD, they change all 3 holes with Syn 3 (or your preferred) every 5K. Now that SCHD has opened Miracle City HD , right down the road from me, I renewed for another 20K plan.
2017 TriGlide Vivid Black - DK Outlaw AC, Fullsac performance baffles, PowerVision from DK, Love Jugs Mighty Mites from Papa Zook, HD Black Reach Bars, all kinds of BLACK stuff... Hi, my name is Mark and I used to be a chromeaholic!
was - 2014 TriGlide Vivid Black - DK Custom Lift, 2" tank lift, DK Dual Cool, DK Discrete breather, Wards Parts Werks FCS, HD Reach Bars, all kinds of shiny stuff!
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