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Old 02-06-2013, 01:56 PM   #21
xxjarrodxx
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Is it true that the amount of ethanol is lower in 93? That would be a good reason to use 93 in a carbureted bike.
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Old 02-06-2013, 04:25 PM   #22
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Quote:
Originally Posted by xxjarrodxx View Post
Is it true that the amount of ethanol is lower in 93? That would be a good reason to use 93 in a carbureted bike.
Or just ride the bike often enough that the fuel doesn't separate and varnish the carbs.
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Old 02-06-2013, 05:31 PM   #23
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Quote:
Originally Posted by Track_Graphics View Post
To lower the octane of the gas that's already in you tank from 100 to 93, about a 7% drop, in a tank holding 4 gallons, that comes out to about 3 quarts, so just add 1 quart sugar, 1 quart NyQuil, and 1 quart water. It'll bring that octane right down.
I would, but a tank of gas would be cheaper than a quart of NyQuil.

The manual says 87 for the R+M/2 method and 91 for the R method. I believe pumps have the R+M/2.
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Old 02-06-2013, 06:37 PM   #24
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Yeah you would only want to use the gas that the manual specifies because the higher octane just leaves more unburnt fuel meant for higher compression ratios if im not mistaken.
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Old 02-06-2013, 07:10 PM   #25
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hold on so It doesnt benefit fit me if I keep putting premium? should I just do mine mid grade? or regular? I have a 929rr
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Old 02-06-2013, 07:35 PM   #26
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Old 02-06-2013, 10:50 PM   #27
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My bike has lied to me the whole entire time then. It says to please use 93 octane from damaging blabla
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Old 02-06-2013, 10:51 PM   #28
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Old 02-07-2013, 01:20 AM   #29
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Old 02-07-2013, 09:09 AM   #30
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Quote:
Originally Posted by Umayrkaleem View Post
hold on so It doesnt benefit fit me if I keep putting premium? should I just do mine mid grade? or regular? I have a 929rr
Always use 87 in my 954s.
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Old 02-07-2013, 09:14 AM   #31
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Quote:
Originally Posted by LCLF Brain View Post
Want to know a dirty little secret of the petrochem industry?

Most fuel at the pumps rated at midgrade is actually the higher grade. It costs too much to ship it in two different tanks.

Incorrect. The truck delivers 87 and 93, and it's blended (roughly 50/50) at the pump to give you 89.
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Old 02-07-2013, 09:15 AM   #32
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Quote:
Originally Posted by gots2no View Post
My ZX6E doesn't like 100 octane. On Sunday, I bought some 100 octane fuel from the pumps at MSRH on Sunday out of curiosity. My bike doesn't idle as well and feels a little rough. I guess my ignition advance (stock) is too retarded to burn that slow burning fuel. That's OK though, I'd rather stay with 93 octane Super Unleaded at $3.75 a gallon, in lieu of tuning my bike to need 100 octane at $8.75 a gallon.

Do you know what fuel, specifically, it was? Not all 100 octane fuels are created equal. It could be an oxygenated fuel which would goof with A:F rations.
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Old 02-07-2013, 09:50 AM   #33
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Quote:
Originally Posted by po-po 5.0 View Post
Do you know what fuel, specifically, it was? Not all 100 octane fuels are created equal. It could be an oxygenated fuel which would goof with A:F rations.
Lean is mean. I do love me some oxy fuel
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Old 02-07-2013, 11:08 AM   #34
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My bike runs like on C16(117 oct) at idle/part throttle stuff as well...Its just too heavy of a fuel, burn rate is too slow.... you wont see much difference in AFR but they definitely will run worse if you're running it straight.... Not sure why but it does happen...

At WOT it will run ok but likely make less power unless you are at 14:1 compression or more..
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