Touring Models Road King, Road King Custom, Road King Classic, Road Glide, Street Glide, Electra Glide, Electra Glide Classic, and Electra Glide Ultra Classic bikes.
Sponsored by:
Sponsored by:

Primary fluid

Thread Tools
 
Search this Thread
 
Old Jul 30, 2016 | 11:02 AM
  #1  
mgmmgm's Avatar
mgmmgm
Thread Starter
|
Outstanding HDF Member
Joined: Feb 2007
Posts: 2,710
Likes: 6
From: Spokane, WA.
Default Primary fluid

I went over to my Indy the other day and got some Amsoil 20-50 and some Amsoil severe gear 75-90 for the tranny -

He said that I was good to go with 32 oz in the Primary. I thought that the primary took 38 oz., he said it was fine with 32oz.

Any thoughts?
 
Reply
Old Jul 30, 2016 | 11:10 AM
  #2  
Keithhu's Avatar
Keithhu
Seasoned HDF Member
15 Year Member
Liked
Loved
Community Favorite
Joined: Sep 2009
Posts: 17,136
Likes: 6,161
From: SE Michigan
Default

You did check your owners manual, right? It says 38.

Personally, thats what I would go with, but thats just me.
 
Reply
Old Jul 30, 2016 | 11:31 AM
  #3  
PeteF's Avatar
PeteF
Road Captain
10 Year Member
Liked
Joined: Aug 2013
Posts: 518
Likes: 83
From: NC
Default

It depends. For example the Rushmores take 34 ounces for a regular fluid change and 38 if the primary cover is removed. Considering the compensator problems Harley has experienced, I put in 34 ounces. Another way to measure it is the fluid should just touch the bottom of the clutch.
 
Reply
Old Jul 30, 2016 | 12:51 PM
  #4  
bdtaylor1979's Avatar
bdtaylor1979
Ultimate HDF Member
Joined: Feb 2009
Posts: 5,132
Likes: 228
From: Garland, TX
Default

The owners manuals for both my 2009 Ultra Classic and my dad's 2014 Ultra Limited say 38oz in the primary for a regular fluid change and 45 oz if you take the outer primary off.
 
Reply
Old Jul 30, 2016 | 12:55 PM
  #5  
bdtaylor1979's Avatar
bdtaylor1979
Ultimate HDF Member
Joined: Feb 2009
Posts: 5,132
Likes: 228
From: Garland, TX
Default

Originally Posted by PeteF
It depends. For example the Rushmores take 34 ounces for a regular fluid change and 38 if the primary cover is removed. Considering the compensator problems Harley has experienced, I put in 34 ounces. Another way to measure it is the fluid should just touch the bottom of the clutch.
My dad has a 2014 rushmore ultra limited and his owners manual says 38 oz for a regular fluid change and 45 oz if the primary is dry from taking the outer primary off.
 
Reply
Old Jul 30, 2016 | 01:08 PM
  #6  
sixguns's Avatar
sixguns
Grand HDF Member
Joined: Nov 2013
Posts: 3,807
Likes: 1,488
From: SW Washington State
Default

Its not his bike, so why would he care when its running low on oil.
 
Reply
Old Jul 30, 2016 | 01:16 PM
  #7  
seniorsuperglideE8's Avatar
seniorsuperglideE8
Supporter
Veteran: Navy
15 Year Member
Liked
Community Favorite
Joined: Jan 2007
Posts: 15,787
Likes: 5,609
From: along the shore of Mishigami
Supporter
Default

There warnings about low primary levels in most HD service manuals and how that may affect shifting or finding neutral. My 2013 Road Glide Ultra calls for 38 ozs. when doing a normal fluid change and that's what I do.
 
Reply
Old Jul 30, 2016 | 01:38 PM
  #8  
PeteF's Avatar
PeteF
Road Captain
10 Year Member
Liked
Joined: Aug 2013
Posts: 518
Likes: 83
From: NC
Default

I should have been more specific. 2016 Touring page 1-25 of the service manual wet 34 oz; dry 38 oz. The 2016's have the narrow primary cover. 2014 Touring page 1-27 of the service manual 38 oz wet, 45 oz dry.
 
Reply
HD Forum Stories

The Best of Harley-Davidson for Lifelong Riders

story-0

8 Best Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-1

10 Worst Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-2

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

 Verdad Gallardo
story-3

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

 Verdad Gallardo
story-4

Harley-Davidson Reveals Super Cool Cafe Racer Concept

 Verdad Gallardo
story-5

Engraved Rebellion: Inside Bundnerbike's Glam Rock II

 Verdad Gallardo
story-6

10 Motorcycles You Should Never Buy

 Joe Kucinski
story-7

10 Things Harley-Davidson Needs to Fix in 2026

 Verdad Gallardo
story-8

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

 Verdad Gallardo
story-9

The Best and Worst Harley-Davidson Moves of 2025

 Verdad Gallardo
Old Jul 30, 2016 | 02:11 PM
  #9  
hog95023's Avatar
hog95023
Elite HDF Member
Joined: Apr 2009
Posts: 3,542
Likes: 161
From: Booming metropolis
Default

Originally Posted by mgmmgm
I went over to my Indy the other day and got some Amsoil 20-50 and some Amsoil severe gear 75-90 for the tranny -

He said that I was good to go with 32 oz in the Primary. I thought that the primary took 38 oz., he said it was fine with 32oz.

Any thoughts?
that's what I run and I have to check the chain tension each time. I'd hazard a guess that so does most every one that gets there bike serviced by an independent shop.
 
Reply
Old Jul 30, 2016 | 02:17 PM
  #10  
bdtaylor1979's Avatar
bdtaylor1979
Ultimate HDF Member
Joined: Feb 2009
Posts: 5,132
Likes: 228
From: Garland, TX
Default

Originally Posted by PeteF
I should have been more specific. 2016 Touring page 1-25 of the service manual wet 34 oz; dry 38 oz. The 2016's have the narrow primary cover. 2014 Touring page 1-27 of the service manual 38 oz wet, 45 oz dry.
Why did they change the primary cover in 2016?
 
Reply



All times are GMT -5. The time now is 11:54 PM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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-8
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
story-9
The Best and Worst Harley-Davidson Moves of 2025

Slideshow: A clear-eyed look at what actually worked for Harley this year, and what quietly undermined its progress.

By Verdad Gallardo | 2025-12-29 17:10:48


VIEW MORE