Softail Models Standard, Custom, Night Train, Deuce, Springer, Heritage, Fatboy, Deluxe, Rocker and Cross Bones.
Sponsored by:
Sponsored by:

Oil Level

Thread Tools
 
Search this Thread
 
Old May 20, 2019 | 07:54 PM
  #1  
balloo's Avatar
balloo
Thread Starter
|
Tourer
Joined: Apr 2011
Posts: 447
Likes: 55
From: Seattle area
Default Oil Level

Was told that it is best to have the level half way between full and add.

Is there a reason for this?

Have a 2008 Heritage

Thanks,
 
Reply
Old May 21, 2019 | 01:21 AM
  #2  
Bone Doc's Avatar
Bone Doc
Seasoned HDF Member
10 Year Member
Joined: Oct 2012
Posts: 13,097
Likes: 13,029
From: Texas, USA
Default

Yes, there is a reason for it.

Many people, not everyone, who fill the oil bag to the full line will experience oil blow by. This is when oil is forced out the crankcase breathers and into the air filter. The air filter will get saturated with oil and either drip the oil or the oil will mist out the filter and onto the bike or rider. To keep this from happening, it is best to fill the oil tank to a mark halfway between add and full.
 
Reply
Old May 21, 2019 | 07:25 AM
  #3  
Dan89FLSTC's Avatar
Dan89FLSTC
Seasoned HDF Member
Veteran: Navy
Active Streak: 30 Days
Top Answer: 3
Top Answer: 5
Joined: May 2008
Posts: 21,143
Likes: 12,707
From: South Carolina
Default

With bike straight up, the oil level should be about 1 to 1-1/2 inches below the bottom of the filler neck. Just eyeball it.
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
rijopiatt
EVO
14
Sep 16, 2016 08:00 AM
paulhog
Touring Models
4
Mar 18, 2012 08:56 PM
truthfire
Dyna Glide Models
8
Apr 4, 2011 02:04 PM
mxz600
Sportster Models
7
Jul 28, 2009 05:29 PM
Ace07FXDL
Oil Archive (no new posts)
1
Sep 15, 2007 09:25 AM




All times are GMT -5. The time now is 08:03 PM.

story-0
7 Times Harley-Davidson Chucked Tradition Out the Window

Slideshow: Harley-Davidson built its reputation on nostalgia, but every so often, the company took a hard left turn into the future.

By Verdad Gallardo | 2026-05-20 11:18:19


VIEW MORE
story-1
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-2
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-3
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-4
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-5
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-6
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-7
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-8
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-9
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