Oil update.
Thread Starter
|
Ultimate HDF Member
Joined: Jan 2009
Posts: 5,016
Likes: 277
From: East Tn Foot of The Dragon
Oil update.
I have been a long time user of Mobil 1 V Twin and Amsoil 20W50 in all 3 holes on my last 3 Harleys. I decided this time around I would try a 75/140 full synthetic in the trans. I finished this am and took my 2011 Heritage for a ride. Results were a definate improvement in shifting and easier to find neutral. I had about 3100 miles since last service with Mobil 1 20w50 in all 3 holes. All 3 drain plugs had little to no metal on the magnets. The Mobile 1 appears to be doing well in the wear dept. Drained primary fluid had no silver/copper color in it. I am impressed with the syn gear lube in the trans. I will update, in the future. with the long term results. 
I've been using shockproof heavy in my trans since I found out about it on this forum.
And I will never go backwards using motor oil in my tranny ever again.
Shifts more smoothly,easier to find neutral,less hard clunk into gear.
Thicker is better
And I will never go backwards using motor oil in my tranny ever again.
Shifts more smoothly,easier to find neutral,less hard clunk into gear.
Thicker is better
Thread Starter
|
Ultimate HDF Member
Joined: Jan 2009
Posts: 5,016
Likes: 277
From: East Tn Foot of The Dragon
Outstanding HDF Member
Joined: Oct 2011
Posts: 3,492
Likes: 19
From: Illinois
This subject gets about as much interest than any other posting. I run the Amsoil 20/50 in engine and primary and 6 speed syn lub in tranny. I tried the shockproof in my tranny and my bike did not like that stuff at all. I could not get it out of there quick enough. Was hard shifting, clanked in and out of neutral and whined like crazy. I drained it out, flushed it, put the 6 speed syn tranny lube back in it and it was back to how it was before the shockproof. It's odd how bikes, the same models, can be different from each other when it comes to things like fluids.
Advanced
Joined: Feb 2008
Posts: 52
Likes: 0
From: South Carolina
Amsoil for the long haul.
I have run the Amsoil 20/50 in engine and primary and Amsoil severe gear oil in the tranny in both my Ultras and am pushing close to 100k between the two with no problems.
Club Member
Joined: Feb 2007
Posts: 2,404
Likes: 12
From: Haymarket, VA
I had been using Spectro Platinum 6 speed in my tranny for about 15K & decided to try Mobil-1 75w-140 syn gear oil mainly for comparison purposes. No difference that I could tell, 5th gear whine about the same, easy shifting with both, no problem finding neutral with either. I should mention both quieted the whine down a lot compared to the factory fill Formula+.
Last edited by streeteagle; Oct 20, 2012 at 08:08 PM.
Trending Topics
Elite HDF Member
Joined: Jun 2008
Posts: 4,109
Likes: 9
From: Connecticut
I use the Mobil 1 syn gear lube 75w-140 and have been for a good 10k now and love it shifts better, no 5th gear noise but then again never heard it anyway as no shield or helmet, so the wind noise and exaust is louder than the little gear whine...
HD Forum Stories
The Best of Harley-Davidson for Lifelong Riders
7 Surprising Harley-Davidson Products that Are Not Motorcycles
Verdad Gallardo
8 Best Harley-Davidson Motorcycles Ever
Pouria Savadkouei
10 Worst Harley-Davidson Motorcycles Ever
Pouria Savadkouei
Killer Custom's Jail Break Is The Breakout That Refused to Blend In
Verdad Gallardo
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?
Verdad Gallardo
Harley-Davidson Reveals Super Cool Cafe Racer Concept
Verdad Gallardo
Engraved Rebellion: Inside Bundnerbike's Glam Rock II
Verdad Gallardo
10 Motorcycles You Should Never Buy
Joe Kucinski
10 Things Harley-Davidson Needs to Fix in 2026
Verdad Gallardo
Club Member
Joined: May 2007
Posts: 145,895
Likes: 821
From: 40 miles Northeast of Indy..
This subject gets about as much interest than any other posting. I run the Amsoil 20/50 in engine and primary and 6 speed syn lub in tranny. I tried the shockproof in my tranny and my bike did not like that stuff at all. I could not get it out of there quick enough. Was hard shifting, clanked in and out of neutral and whined like crazy. I drained it out, flushed it, put the 6 speed syn tranny lube back in it and it was back to how it was before the shockproof. It's odd how bikes, the same models, can be different from each other when it comes to things like fluids.
I'll stick with Mobile 1 75-90 for our climate here in IND..
.
