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Old 12-21-2006, 03:52 PM   #41
zero_cool
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V Powa baby!!!
I like to run Bio-Diesel for track days though
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Old 12-21-2006, 03:56 PM   #42
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93.

Definately run what your manual tells you to. If it says 87 or better run 87. If it says 91 or better run that. If you run 87 on an electronically controlled engine that was designed for 91 you could get detonation due to the timing advance and usually the computer will pull back the timing to prevent damage BUT damage can still occur. You can bet the manufacturer won't cover any damage if they find out you've been running 87 in a bike that states it needs 91 or higher.
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Old 12-21-2006, 05:13 PM   #43
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This is like asking what oils is best or what tires is best. there is no def. answer but the general idea is run the lowest oct that your bike will perform at its best. higher oct doesnt mean better and lower doesnt mean worse. depending on your motor, you might have to go lower or higher, for that you will just have to spend time and tweak it.
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Old 12-21-2006, 05:19 PM   #44
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i run REG! she runs just fine!
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Old 12-21-2006, 05:20 PM   #45
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that's right....the higher octane prevents detonation, and in doing so lets you run more timing advance.....and more timing advance means more power.
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Old 12-21-2006, 05:28 PM   #46
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Old 12-21-2006, 05:32 PM   #47
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unless your really hard up for money, run 93 oct.. im sure it will do more good than harm. plain and simple.
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Old 12-21-2006, 05:40 PM   #48
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is that for 2 strokes also??????????????????????????????????????
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Old 12-21-2006, 05:41 PM   #49
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After reading the article and trying out the gas, it is hard to tell the difference of 87, 89, or 93 octane gas. Now, I am really confused. So, I will go with 93 oct as required by Kawasaki. In my opinion, you will be more beneficial for using premium gas, only if your bike is reccommend using premium. For a dollar more to insured you bike from predetonation or pinging, it is worth it.
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Old 12-21-2006, 05:44 PM   #50
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i know it make a difference on yamaha as far as pinging and performance. on hondas i didn't notice alot of difference if any at all . id stick to 93 its only 1.10 more a tank anyways
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Old 12-21-2006, 05:47 PM   #51
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i mix it, half plus and half premium....saves me a lil money and seems to run the same
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Old 12-21-2006, 05:48 PM   #52
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the only thing I every notice with using 93 is that it made my exhaust smell worse..
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Old 12-21-2006, 05:51 PM   #53
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Ya know I been an aircraft mech for longer than I wanna admit. the truth is like Patrick and Long have said earlier in this thread.
Higher octane prevents detonation like you might find in a high compression or poorly tuned engine. If your engine is not VERY high compression you don't need to spend the money.
As far as so called "Premium" gas being somehow "better" I know a story that suggests different.
A friends wife bought a new car a few yrs ago and decided since she could afford it she would run nothing but "premium". After about 6 yrs the engine fried itself. She took it to a dealer and as they were replacing the whole engine the service manager told her the problem was that constant use of premium had caused deposits that ruined her engine. The deposits were attributed to extra additives that are used in higher octane gas.
Is the story all true?
I don't know if there were other factors but bottom line is use what the mfr reccomends.
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