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octane choice?

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Old May 1, 2007 | 09:11 PM
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Default octane choice?
what octane gas does everyone use? i was using the 94 until my buddy said try the 87 because he was getting better fuel mileage on his heritage. tried the cheap stuff and low and behold i have run 130 miles and still have a quarter tank left.
no lie i only got about 120 miles ona tank ofhigher octane. anybody else have better fuel mileage like this? does harley recommend a certain octane level?
 
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Old May 1, 2007 | 09:22 PM
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Default RE: octane choice?
I believe HD recommends 91 octane or higher for fuel.
 
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Old May 1, 2007 | 09:55 PM
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Default RE: octane choice?
I just use the best I can get, usually 93. I figure its better because I tend to use the lower end of the power band more often than the upper, and higher manifold pressures with low RPM's is an invitaion to preignition or detination problems with lower grade fuels.
 
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Old May 1, 2007 | 09:58 PM
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Default RE: octane choice?
Since I get 40 plus MPG I use nothing but the best....For me it's Chevron hightest

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Old May 1, 2007 | 10:03 PM
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Default RE: octane choice?
Always the highest I can find. 94 or 91 usually.

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Old May 1, 2007 | 10:06 PM
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Default RE: octane choice?
Higher the better
 
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Old May 1, 2007 | 10:08 PM
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Default RE: octane choice?
Running higher than needed octane is a waste of $$. It doesn't burn cleaner, make more power, or do anything special. Lots of guys running stock compressionuse lower grades and report better mileage and a smidge more power.
 
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Old May 1, 2007 | 10:18 PM
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Default RE: octane choice?
Harley does recomend 92 or higher
 
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Old May 1, 2007 | 10:59 PM
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Default RE: octane choice?
My Evo runs just fine on 87 octane.

MikeyB
 
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Old May 1, 2007 | 11:30 PM
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Default RE: octane choice?
I use super, for the extra .20 per gallon, I can aford the extra buck it may cost to fill it.
 
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