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Fuel Octane?

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Old Jan 22, 2008 | 05:59 PM
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Default Fuel Octane?
Just got an 04 Ultra today. Used to be a winger. So I don`t know much about Harleys.I am sure I will learn a lot from this forum. So , what octane fuel should I use?
 
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Old Jan 22, 2008 | 06:09 PM
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Default RE: Fuel Octane?
ORIGINAL: James Dickey

Just got an 04 Ultra today. Used to be a winger. So I don`t know much about Harleys.I am sure I will learn a lot from this forum. So , what octane fuel should I use?
All I can tell you is the the 96 engine requires 91 octane .... I've heard others complain of engine pinging/knocking ......... I've been trying to find out if it was the fuel that they'd been using, ie, below 91 octane.
 
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Old Jan 22, 2008 | 06:13 PM
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Default RE: Fuel Octane?
As high as you can get, here in Wyoming 91 is the highest...I'd run 93 or 95 if I could get it.
 
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Old Jan 22, 2008 | 07:57 PM
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Default RE: Fuel Octane?
As high as I can get as well. 92+ around here.
 
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Old Jan 22, 2008 | 08:00 PM
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Default RE: Fuel Octane?
Same here, as high as I can get.
 
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Old Jan 22, 2008 | 08:16 PM
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Default RE: Fuel Octane?
91 or better!!!!!!!!!!!
 
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Old Jan 22, 2008 | 08:25 PM
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Default RE: Fuel Octane?
I have an 05 Classic and use High Test only. Around here usually is 93 octane.
Welcome to the forum and enjoy your Harley.
 
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Old Jan 22, 2008 | 08:31 PM
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Default RE: Fuel Octane?
As high as I can get - around here 93.

Hack
 
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Old Jan 22, 2008 | 08:45 PM
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Default RE: Fuel Octane?
As High octane as is in your area. 91, 92, 93 [/align]
 
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Old Jan 22, 2008 | 08:55 PM
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Default RE: Fuel Octane?
Years ago when they took the lead out of gasand the octanes went down. I heard that some guys especially with sportsterswere buying gas at the local airport.
I think they called it red gas and it was for planes but they used it in their scoots. I don't know if airplane gas is still higher octane but it would interesting to find out.
Anybody have any info on that?
 
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