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Discussion Starter · #1 ·
has anyone noticed any difference in the stryker's performance while running any different grade of fuel? (mileage, performance, noises...)
 

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I used to run 91 then I went with 89, haven't tried 87, not sure if I want to...lol... But there is no difference between 91 and 89, as far as I can tell.
 

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Dont Know If Its Just Me But I Use To Use 92 And Noticed My Pipes Would Pop Allot? Switched It Up To The Mid Grade And Im Good??
 

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higher octane gas is designed for high compression engines these are low compression engines you'll have to change out the pistons to high compression pistons and retime the engine to see any gains. Higher octane doesn't mean your getting more power it means it has a higher ignition temp which is what high compression engines need. It takes more heat to ignite 93 then it does 87. If you run 93 in these bikes your actually losing more hp then you would with 87. I haven't run 89 in my bike yet and haven't looked to see what the optimal octane level should be it is most likely 87 but could be 89. I know its not 93. the reason higher octane is more expensive is because it is not produced as much as 87 not because it is a better fuel. Hope this helps
 

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Discussion Starter · #7 ·
that helps more than you know.. the price difference between 87 and 91 in saskatchewan is 11 cents a litre. that works out to about 42 cents extra a gallon :eek:
 

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Discussion Starter · #9 ·
funny hey, i doesent make any sence that we supply, refine and ship the gas and oil and still pay wwwaaayyyy more....................... 87 octane is $4.82 a US gallon up here :mad:
 

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Great info on the breakdown of the gass... Learned something new... And no I still have my stock pipes... I pretty much stick to the mid?? Lemme know if the cheaper gass is best??
 

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Here in Colorado our low octane is 85, 87 is mid and 91 is high. My understanding is that because of the altitude 85 here is the same as 87 somewhere else. Any thoughts or advice? My bike seems fine on 85, but should I move to the 87 mid grade?
 

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from the owners manual 86 or higher gas is ok. I think after exhaust and intake and programmer ill stick with mid-grade and call it good

 

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i have been sticking with the mid grade 89 octane gas, and i am happy i do not live in the way north, gas in michigan was 3.39 this week, now 3.59.
 

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My charger is programmed with the predator to use 93 octane, so im used to it. But i really didnt see a differance in the bike so i just put the 89 in now.
 

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Runs at it's best on 87! Not like my sport bikes which actually run better on the highest octane you can find! 87 ignites at a lower temp which is healthy for our simple V-Twin engines... Stop wasting $$ on anything more and stop making your engine actually work harder to burn the fuel! :mad:
 

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