Petro

Nothing but the best.
93 OCTANE.

My question is.......
Y use anything else?
It's about a .20 cent price difference
We are talking about a tank that hold about 2.5 gallons.
So lets say it cost a dollar or two more.
Remember you paid a lot extra to have a DUCATI than thos Gixxer boys.
So let her drink the BEST.
 
In Montana, our reg is only 85, and 89 is as good as it gets for pump gas.

Any one try VP U4 yet? Dyno run or track day?
I have to buy 5 gal for my last hillclimb and will only use 2 gal.
 
Smeegle,

Where are you buying 94 octane? I thought the Feds outlawed everything over 93. I used to run Cam2, (102 ocatne), in my Kaw, but I'm not sure they still sell it. And we used to go to the local airport and buy airplane fuel for the bikes, (high ocatane also, over 100, I don't recall exactly how much), but I haven't tried that in some years either.

Are you buying 94 octane in the USA?

Elton
 
Sunoco still sells 94 oct in Ohio, but stations
are few and far between compared with BP,
Shell, Speedway, etc. which only carry 92/93.
 
Well I spent some time with my techs after hours yesterday. Took a long ride up to my dealer with full gear and a backpack to grab a few things they had for me. They were both getting their bikes prepped for track days and one for a race next weekend. Mind you this is a guy who builds race bikes for other people including himself...he got just as much hp tuning my stock engine as another did with race pistons/valve job/porting job.

Turns out that they recommend I get down in octane as much as I can. Definitely 89 but 87 if I don't get pinging. The bike will run better with more power and less carbon deposits. My buddy's 1098 runs great on 91 and he might start 89. I tried 89 on the way home, fine. My bike currently has a full tank of 87 in it.

I won't get too far into trying to explain it but here goes...you want the purest fuel you can for a lower compression engine provided it doesn't detonate - or ping. (My original "headcase" bike with 13.5:1 pistons required 93) Because of the additives in higher octane fuels they build up carbon deposits and slow the bike down. (the octane prevents the pinging and knocking and there are more additives to clean the deposits I guess?) My mechanic ran 93 in his 749R race bike only once and found there to be "a shitload" of carbon deposits in there. They did a test on different fuels on another bike and the bike had literally one more hp on lower octane gas. (remember these are race junkies...one more hp or one less lb mean a lot) And I know what you're going to say, like I did..."why is higher octane marketed as better?" Hmmm...the oil companies' profits will tell you that one. And "why is race gas so high in octane?" Well it's a completely different type of fuel and there are different kinds of octane measurements: http://en.wikipedia.org/wiki/Octane_rating

So unless your engine requires higher octane (my German rides always had "min 91" inside the filler door), you should experiment and go as low as possible in anything you drive/ride. The 1098s have been proven to run on 91, the jury is still out on whether they can run on 89 but probably can. Right now my bike runs the nuts on 87. Oh and by the way, you can use Chevron Techron (sp?) to clean out the carbon deposits...just mix it properly and you'll be fine. You can also help clean them out by romping the shit out of the bike every now and then too!

I know that I didn't explain that completely right because I probably only absorbed 3/4 of it...but the bottom line is that guys building, repairing, and racing bikes for many years are reputable in my eyes.
 
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