which kind of octane to use? - Sportbikes.net
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post #1 of 48 (permalink) Old 08-10-2004, 07:51 PM Thread Starter
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which kind of octane to use?

which octane of gas do u put into ur bike?

87? 89? 91? 93?
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post #2 of 48 (permalink) Old 08-10-2004, 08:11 PM
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87, i'm cheap and it runs great
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post #3 of 48 (permalink) Old 08-10-2004, 08:11 PM
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I run 93 myself. nothing less. Once in awhile I will sometimes put 107 race gas in, that stuff smells awesome

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post #4 of 48 (permalink) Old 08-10-2004, 08:21 PM
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ya i go with 93. for a few cents more why not
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post #5 of 48 (permalink) Old 08-10-2004, 08:25 PM
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Run the minimum octane recommended. Octane is just gasoline's knock resistance...which is basically resistance to detonation. Meaning, the fuel burns more SLOWLY. So if you're required a MINIMUM of 87 octane, and you're running 93...you're actually LOSING power as compared to if you were running 87. Use the minimum recommended octane, it will work better. Only time you need to bump to higher octane is with more timing advance, more compression, or a leaner fuel mixture. But I do have to agree....race fuel smells awesome.

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post #6 of 48 (permalink) Old 08-10-2004, 08:27 PM
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The higher octane, pump gas, such as 93 does not always help the bike. For instance, it may make the bike run to rich.

Should use the lowest octane that does not producing pinging. In some cases 89 will also produce more power than 91 or 93. Also if your bike is not mapped to run with 100+ octane it may harm the bike more than anything.

Some of the race fuels aren't even 93 octane, then again u can't really compare them.

I run 89 myself and get the same mileage and the bike runs better with it, than 93.

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post #7 of 48 (permalink) Old 08-10-2004, 09:05 PM
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My bike only gets rail drinks. None of that high priced top shelf crap.
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post #8 of 48 (permalink) Old 08-10-2004, 09:08 PM
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I use the lowest octane rating the manufacturer reccomends for my bike
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post #9 of 48 (permalink) Old 08-10-2004, 11:10 PM
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Use what the owner's manual says to use. In my case it's 87 octane. Bike runs great.

Quote:
Originally Posted by DreddR6
The higher octane, pump gas, such as 93 does not always help the bike. For instance, it may make the bike run to rich.
Fuel octane has nothing to do with your air:fuel ratio.

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post #10 of 48 (permalink) Old 08-10-2004, 11:11 PM
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correct

Quote:
Originally Posted by HalfLiterBeater
Run the minimum octane recommended. Octane is just gasoline's knock resistance...which is basically resistance to detonation. Meaning, the fuel burns more SLOWLY. So if you're required a MINIMUM of 87 octane, and you're running 93...you're actually LOSING power as compared to if you were running 87. Use the minimum recommended octane, it will work better. Only time you need to bump to higher octane is with more timing advance, more compression, or a leaner fuel mixture. But I do have to agree....race fuel smells awesome.
My aprilia says nothing less than 90 so I have been going out of my way to find 92, after running 90 a few times I believe I feel a bit more gusto, the higher the octane rating the less volitile the fuel contrary to popular belief, High compression engines need slower burning fuel so no to blow half way up the compression stroke(very simplified partially true explanation.)


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post #11 of 48 (permalink) Old 08-10-2004, 11:36 PM
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91 or 94 in canada, I see a power diffrence between 94 and 87, I dunno what you guys are talking about
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post #12 of 48 (permalink) Old 08-11-2004, 02:26 AM
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as i remember my manual says to run 95 in the priller. the highest i have around here is 93, so its alwyas premium for me.

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post #13 of 48 (permalink) Old 08-11-2004, 04:17 AM
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97 ... not more or less power ... just smoother and marginally better mileage.

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post #14 of 48 (permalink) Old 08-11-2004, 05:48 AM
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We don't have the octane option here in Italy, not even on base. It's all 94 octane, you pull up to gas station and you've got gas and diesel, that's it, no other options.

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post #15 of 48 (permalink) Old 08-11-2004, 08:19 AM
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87 is what the manual calls for, so that's what I use
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