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

Ethanol and Aviation fuel

Thread Tools
 
Search this Thread
 
Old Mar 29, 2013 | 08:47 AM
  #1  
Bullbutch's Avatar
Bullbutch
Thread Starter
|
Cruiser
Joined: Mar 2011
Posts: 177
Likes: 0
From: NJ
Default Ethanol and Aviation fuel

I'm reading about this gas with Ethanol in it and the problems it's causing and read that people are using aviation fuel instead. Anyone hear of this and is it safe?
 
Reply
Old Mar 29, 2013 | 09:08 AM
  #2  
Radimus's Avatar
Radimus
Tourer
Joined: Apr 2010
Posts: 347
Likes: 0
From: Tampa
Default

I have a friend that lives on his 'Busa and he does his best to use aviation fuel, especially when he is doing street drags.

Over the long haul Ethanol gas is bad for engines, but if you run a cleaner through it occasionally, it will be fine.

Edit: It does run much hotter than regular gas does... Watch your pipes
 

Last edited by Radimus; Mar 29, 2013 at 09:13 AM.
Reply
Old Mar 29, 2013 | 09:11 AM
  #3  
Bullbutch's Avatar
Bullbutch
Thread Starter
|
Cruiser
Joined: Mar 2011
Posts: 177
Likes: 0
From: NJ
Default

Originally Posted by Radimus
I have a friend that lives on his 'Busa and he does his best to use aviation fuel, especially when he is doing street drags.

Over the long haul Ethanol gas is bad for engines, but if you run a cleaner through it occasionally, it will be fine.
So I can run Aviation fuel with no problems, and can you give me the name of a good cleaner i can buy?
 
Reply
Old Mar 29, 2013 | 09:34 AM
  #4  
Radimus's Avatar
Radimus
Tourer
Joined: Apr 2010
Posts: 347
Likes: 0
From: Tampa
Default

Many like Seafoam and Murphy

 
Reply
Old Mar 29, 2013 | 09:41 AM
  #5  
Dan89FLSTC's Avatar
Dan89FLSTC
Seasoned HDF Member
Veteran: Navy
Active Streak: 30 Days
Top Answer: 3
Top Answer: 5
Joined: May 2008
Posts: 21,174
Likes: 12,745
From: South Carolina
Default

Over the long haul ethanol won`t harm your engine. I`ve been running the crap for 13 years in my vehicles without issue. I`ve been an aircraft mech for the past 39 years, and have never considered using avgas or aircraft oil in any of my vehicles.

What are you going to do, stop at the airport every time you need gas? Just buy the best pump gas you can find.
 

Last edited by Dan89FLSTC; Mar 29, 2013 at 09:48 AM.
Reply
Old Mar 29, 2013 | 09:44 AM
  #6  
Warp Factor's Avatar
Warp Factor
Outstanding HDF Member
Joined: Aug 2012
Posts: 3,217
Likes: 90
From: Detroit
Default

Normal ethanol enhanced gas is fine. All modern fuel systems and engines are designed to deal with it.
In fact, E-85 is fast becoming the preferred alternative to race gas, even though the changes needed to run E-85 are pretty extensive. One advantage is that it burns cooler, lowering combustion temperatures and oil temperatures, and the heat load on the cooling system.
 
Reply
Old Mar 29, 2013 | 09:50 AM
  #7  
kneesinthebreeze's Avatar
kneesinthebreeze
Road Master
Joined: Sep 2012
Posts: 875
Likes: 10
From: Corp of Discovery trail, Missouri
Default

http://pure-gas.org/

I use this this find local stations near by that sells gas with no ethanol. Even though modern motors can handle 10% ethanol I prefer the old standard.
 
Reply
Old Mar 29, 2013 | 09:53 AM
  #8  
Bullbutch's Avatar
Bullbutch
Thread Starter
|
Cruiser
Joined: Mar 2011
Posts: 177
Likes: 0
From: NJ
Default

Originally Posted by Dan89FLSTC
Over the long haul ethanol won`t harm your engine. I`ve been running the crap for 13 years in my vehicles without issue. I`ve been an aircraft mech for the past 39 years, and have never considered using avgas or aircraft oil in any of my vehicles.

What are you going to do, stop at the airport every time you need gas? Just buy the best pump gas you can find.
I have a small airport a few miles away from me actually.
 
Reply
HD Forum Stories

The Best of Harley-Davidson for Lifelong Riders

story-0

7 Times Harley-Davidson Chucked Tradition Out the Window

 Verdad Gallardo
story-1

7 Surprising Harley-Davidson Products that Are Not Motorcycles

 Verdad Gallardo
story-2

8 Best Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-3

10 Worst Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-4

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

 Verdad Gallardo
story-5

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

 Verdad Gallardo
story-6

Harley-Davidson Reveals Super Cool Cafe Racer Concept

 Verdad Gallardo
story-7

Engraved Rebellion: Inside Bundnerbike's Glam Rock II

 Verdad Gallardo
story-8

10 Motorcycles You Should Never Buy

 Joe Kucinski
story-9

10 Things Harley-Davidson Needs to Fix in 2026

 Verdad Gallardo
Old Mar 29, 2013 | 02:03 PM
  #9  
Dan89FLSTC's Avatar
Dan89FLSTC
Seasoned HDF Member
Veteran: Navy
Active Streak: 30 Days
Top Answer: 3
Top Answer: 5
Joined: May 2008
Posts: 21,174
Likes: 12,745
From: South Carolina
Default

Originally Posted by Bullbutch
I have a small airport a few miles away from me actually.
Well, that will be convenient. You can throw a couple of 5 gallon gas cans into the car or truck, go to the airport, get them filled, lug them back home, and with funnel, dump the stuff into the bike. That will be fun, especially if you have the new safety gas cans that are guaranteed to slop fuel everywhere.
 
Reply
Old Mar 29, 2013 | 03:52 PM
  #10  
Misbehaven's Avatar
Misbehaven
Elite HDF Member
15 Year Member
Photogenic
Photoriffic
Liked
Joined: Dec 2010
Posts: 4,501
Likes: 26
From: Sheboygan,Wi
Default

Aviation fuel will cost you more and it's higher octane will result in poor fuel mileage and loss of power in a stock Harley. Higher octane fuel burns slower and is best used in higher compression engines. So all in all aviation and race fuel is a wast of money for a stock engine.
 
Reply



All times are GMT -5. The time now is 11:28 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