Harley Davidson Forums

Dyna Glide Models Super Glide, Super Glide Sport, Super Glide Custom, Dyna Glide Convertible, Super Glide T-Sport, Dyna Glide Police, Dyna Switchback, Low Rider, Street Bob, Fat Bob and Wide Glide.
Sponsored by:
Sponsored by:

What type of oil for trans??????? 5 speed

Thread Tools
 
Search this Thread
 
Old May 20, 2009 | 01:51 PM
Share
  #1  
bowman78's Avatar
bowman78
Thread Starter
|
Cruiser
Joined: Dec 2008
Posts: 179
Likes: 0
Default What type of oil for trans??????? 5 speed
my bike currently has syn 3 in trans but it just doesnt seem to shift that smooth and I've heard of guys putting heavier fluid in them but what do you guys have personal experience and good luck with??? when downshifting thru the gears seems to have a louder than what i feel is a normal clunk...................tim
 
Reply
0
Old May 20, 2009 | 02:25 PM
Share
  #2  
thedonthere's Avatar
thedonthere
Outstanding HDF Member
Joined: Dec 2008
Posts: 2,419
Likes: 1
From: Ashland Ore.
Default
I just recently changed from syn3 to Royal Purple 75/90. It seems to have smoothed out the shifting on my bike. You're going to get a ton of varying opinions on this subject.
 
Reply
0
Old May 20, 2009 | 03:03 PM
Share
  #3  
thomaskray's Avatar
thomaskray
Road Master
Joined: Aug 2008
Posts: 1,026
Likes: 0
From: Carroll County, Maryland
Default
I use redline. seems to work ok.
 
Last edited by thomaskray; May 20, 2009 at 03:06 PM.
Reply
0
Old May 20, 2009 | 04:15 PM
Share
  #4  
tree88's Avatar
tree88
Road Captain
Joined: May 2007
Posts: 526
Likes: 3
From: killeen texas
Default i use mobile one 75w90
seems to work pretty well
 
Reply
0
Old May 20, 2009 | 04:22 PM
Share
  #5  
dyna rider's Avatar
dyna rider
Club Member
Veteran: Army
Joined: Dec 2007
Posts: 4,192
Likes: 168
From: Knoxville, Tn
Default Gear Oil
I use Spectro 75w140 but any 75w140 will work.
 
Reply
0
Old May 20, 2009 | 04:51 PM
Share
  #6  
OldMike's Avatar
OldMike
Seasoned HDF Member
15 Year Member
Liked
Loved
Community Favorite
Joined: Feb 2009
Posts: 5,642
Likes: 1,985
From: Cleveland Zoo
Default
Originally Posted by thedonthere
I just recently changed from syn3 to Royal Purple 75/90. It seems to have smoothed out the shifting on my bike. You're going to get a ton of varying opinions on this subject.
+1 on the Purple stuff and I run Moble One synthetic ATF in the primary for very positive, smooth shifting.

Mike
 
Reply
0
Old May 20, 2009 | 09:26 PM
Share
  #7  
Rick1972's Avatar
Rick1972
Cruiser
Joined: May 2008
Posts: 104
Likes: 2
From: Warren, OH
Default
+1 on the RP. Royal Purple is the way to go. I have been a fan since racing stock cars several years ago. 75w90 is what I run in my Super Glide transmission..
 
Reply
0

Trending Topics

Old May 20, 2009 | 09:34 PM
Share
  #8  
Gary7's Avatar
Gary7
Road Warrior
Joined: Dec 2008
Posts: 1,530
Likes: 1
From: Upstate, SC
Default
Originally Posted by bowman78
my bike currently has syn 3 in trans but it just doesnt seem to shift that smooth and I've heard of guys putting heavier fluid in them but what do you guys have personal experience and good luck with??? when downshifting thru the gears seems to have a louder than what i feel is a normal clunk...................tim
Syn3 will certainly provide all the protection a Harley transmission needs, but when it comes to NVH there are better choices. A good GL-5 75w140 gear oil is the best. That's what I'm running in my tranny, with B&M Trick Shift in the primary.
 
Reply
0
HD Forum Stories

The Best of Harley-Davidson for Lifelong Riders

story-0

7 Surprising Harley-Davidson Products that Are Not Motorcycles

 Verdad Gallardo
story-1

8 Best Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-2

10 Worst Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-3

Killer Custom's Jail Break Is The Breakout That Refused to Blend In

 Verdad Gallardo
story-4

Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?

 Verdad Gallardo
story-5

Harley-Davidson Reveals Super Cool Cafe Racer Concept

 Verdad Gallardo
story-6

Engraved Rebellion: Inside Bundnerbike's Glam Rock II

 Verdad Gallardo
story-7

10 Motorcycles You Should Never Buy

 Joe Kucinski
story-8

10 Things Harley-Davidson Needs to Fix in 2026

 Verdad Gallardo
story-9

Southpaw Super Glide: A Left-Hand-Drive 1979 Harley FXE Built to Fit the Rider

 Verdad Gallardo
Old May 20, 2009 | 09:39 PM
Share
  #9  
MZBuckeye's Avatar
MZBuckeye
Road Warrior
Joined: Aug 2008
Posts: 1,500
Likes: 0
From: Brunswick, OH
Default
Red Line in everything for me.
 
Reply
0
Old May 21, 2009 | 02:52 AM
Share
  #10  
bklynbob's Avatar
bklynbob
Grand HDF Member
15 Year Member
Liked
Loved
Community Favorite
Joined: Mar 2008
Posts: 4,996
Likes: 655
From: bklyn,ny
Default do both
Replace the primary fluid with a syntheteic "dexron" type of atf AND a good sythetic gear oil.I like amsoil sg 75-110 and their universal synthetic atf. Change once a year.
 
Reply
0



Advanced Search
Reply Closed Thread Share
Forum Jump

All times are GMT -5. The time now is 08:25 AM.

story-0
7 Surprising Harley-Davidson Products that Are Not Motorcycles

Slideshow: The bar-and-shield logo shows up on far more than motorcycles, some of the company's most unexpected products have nothing to do with riding.

By Verdad Gallardo | 2026-04-29 16:50:35


VIEW MORE
story-1
8 Best Harley-Davidson Motorcycles Ever

Slideshow: Not every Harley gets it right, but these are the ones that genuinely earned their reputation.

By Pouria Savadkouei | 2026-04-15 14:23:21


VIEW MORE
story-2
10 Worst Harley-Davidson Motorcycles Ever

Slideshow: From the troubled AMF years to modern misfires, these bikes earned reputations for reliability issues, questionable engineering, or disappointing performance.

By Pouria Savadkouei | 2026-04-01 20:01:09


VIEW MORE
story-3
Killer Custom's Jail Break Is The Breakout That Refused to Blend In

Slideshow: Killer Custom's "Jail Breaker" build focuses more on stance and visual aggression than mechanical overhaul.

By Verdad Gallardo | 2026-03-18 19:20:32


VIEW MORE
story-4
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?

Slideshow: The Swiss custom shop has taken a Harley Softail and stretched it into something so long and low that it looks closer to a rolling sculpture than a conventional motorcycle.

By Verdad Gallardo | 2026-03-07 16:15:30


VIEW MORE
story-5
Harley-Davidson Reveals Super Cool Cafe Racer Concept

Slideshow: Harley-Davidson's new RMCR concept revives the café racer formula with modern hardware-and it may be exactly the reset the company needs.

By Verdad Gallardo | 2026-03-04 12:23:37


VIEW MORE
story-6
Engraved Rebellion: Inside Bundnerbike's Glam Rock II

Slideshow: A standard cruiser becomes an intricate metal canvas in the hands of a Swiss custom house known for pushing Harley-Davidson platforms far beyond their factory brief.

By Verdad Gallardo | 2026-02-24 18:19:44


VIEW MORE
story-7
10 Motorcycles You Should Never Buy

Slideshow: There is no shortage of great motorcycles to buy, but we would avoid these ten.

By Joe Kucinski | 2026-02-19 14:50:51


VIEW MORE
story-8
10 Things Harley-Davidson Needs to Fix in 2026

Slideshow: Harley-Davidson's challenges aren't abstract; they show up in dropping shipments, shrinking dealer traffic, and strategic decisions that aren't yet translating into growth.

By Verdad Gallardo | 2026-01-13 18:33:17


VIEW MORE
story-9
Southpaw Super Glide: A Left-Hand-Drive 1979 Harley FXE Built to Fit the Rider

Slideshow: Graeme Billington's left-hand-drive Shovelhead is as much about problem-solving as it is about classic Harley form.

By Verdad Gallardo | 2025-12-30 11:27:08


VIEW MORE