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Octane Rating?

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Old Jul 28, 2014 | 08:14 PM
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Default Octane Rating?
I Have 98 FLHRCI what octane do you guys try to run?
 
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Old Jul 28, 2014 | 08:57 PM
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Originally Posted by uplandpinter
I Have 98 FLHRCI what octane do you guys try to run?


Premium only in my 97FLSTC.....
 
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Old Jul 28, 2014 | 09:58 PM
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The local BP stations have ethanol-free, 91 octane. That's what I've been putting in my FXR.
 
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Old Jul 28, 2014 | 10:53 PM
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93 premium.
 
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Old Jul 29, 2014 | 05:25 AM
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premium 93, unless I use ethanol free, then its 91.. Honestly, you should be fine with anything that doesn't ping.. The rating is just that, a burn rate which helps to control the tendency to knock.. I simply do it because, I'd rather lean to the safe side for hot days and neither of my bikes are stock.. I don't care about the cost since its double the mileage of my truck anyhow.. Depending on the bike, you may also notice better mileage on a particular octane too..
 
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Old Jul 29, 2014 | 05:28 AM
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Highest grade @ Gas Bar Always
 
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Old Jul 29, 2014 | 07:53 AM
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Standard compression bike will run fine on regular.
 
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Old Jul 29, 2014 | 09:06 AM
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I run 87 or 89... no need to run premium with stock CR.
 
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Old Jul 29, 2014 | 03:34 PM
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My Manual calls for Premium for 2007
 
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Old Jul 29, 2014 | 04:32 PM
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Originally Posted by mayhemmaster
My Manual calls for Premium for 2007
And your 96 inch twinkie is fuel injected and is running on a higher CR than a stock evoglide.
 
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