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Old Jul 12, 2011 | 01:33 PM
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I've heard from some Harley friends that I must run Premium fuel in my Ultra Classic. I can't finding anything in writing to either confirm or deny this. Does it matter?
 
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Old Jul 12, 2011 | 01:46 PM
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My owners manuel says to use 91 octane any bike I have ever owned used at least 91 octane.
 
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Old Jul 12, 2011 | 01:48 PM
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My owners manual says 91 Octane.
 
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Old Jul 12, 2011 | 01:55 PM
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Originally Posted by Bratch
I've heard from some Harley friends that I must run Premium fuel in my Ultra Classic. I can't finding anything in writing to either confirm or deny this. Does it matter?
If it's a performance concern, then use whatever the bike runs best on. If it's pinging & carrying on with lower octane, then go to the next higher octane. When I first got my bike I ran 91 and after talking with a few buddies, I started using the 94. I honestly don't see a huge difference in the way the bike runs, but still always use Sunoco Premium - maybe it's more psychological than anything else... or maybe not?? Regardless, IMO a couple of extra dollars on a tank of premium gas isn't a big deal.
 
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Old Jul 12, 2011 | 02:10 PM
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20 cents a galllon x 5 galllons is only a buck, heck just do it!
 
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Old Jul 12, 2011 | 02:13 PM
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Originally Posted by Bratch
I've heard from some Harley friends that I must run Premium fuel in my Ultra Classic. I can't finding anything in writing to either confirm or deny this. Does it matter?
you didn't get an owner's manual?

91 is what is recommended. and has been for at least a decade.
 
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Old Jul 12, 2011 | 02:55 PM
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Originally Posted by Bratch
I've heard from some Harley friends that I must run Premium fuel in my Ultra Classic. I can't finding anything in writing to either confirm or deny this. Does it matter?
Originally Posted by skratch
you didn't get an owner's manual?

91 is what is recommended. and has been for at least a decade.

It is in "writing", right in the owner's manual.
 
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Old Jul 12, 2011 | 03:04 PM
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Thanks. Guess I should read it twice before posting a question. Ha ha.
 
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Old Jul 12, 2011 | 03:26 PM
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Ethanol free premium top tier gasoline if you are really picky.
 
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Old Jul 12, 2011 | 04:03 PM
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i always run highest octane i can find, no pinging, better fuel mileage
 
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