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Old 03-16-2019, 04:56 AM   #1
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Question Brazilian fuel

I read an old thread here about fuel in Brazil containing 27.5% ethanol, I'm curious as to how motors handle such high ethanol content in Brazil, most owners manuals I've seen here in OZ state no higher than 10% ethanol is to be used or you void warranty and a lot of riders I know wont use E10 unless they absolutely have to so do the bike motors in Brazil have a shorter lifespan or is 27.5% ethanol not a problem
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Old 03-16-2019, 07:44 AM   #2
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You will probably find that bikes for the Brazilian market have much lower compression ratios, or some such mod, to allow them to run on the local fuel. Manufacturers sell different versions of every vehicle, in each market the sell to, to meet local requirements.
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Old 04-07-2019, 10:26 PM   #3
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Quote:
Originally Posted by JockoT View Post
You will probably find that bikes for the Brazilian market have much lower compression ratios, or some such mod, to allow them to run on the local fuel. Manufacturers sell different versions of every vehicle, in each market the sell to, to meet local requirements.
Why would the bikes have their compression ratio's reduced when such high ethanol ratios are used in Brazil?

Ethanol is an octane modifier that boosts octane rating, so 27.5% would mean the octane or AKI would probably be substantially raised, not lowered.

In terms of its octane rating, ethanol has a rating of 113...When you mix 10 percent 113 octane ethanol with 85 octane gasoline it increases the octane two points to the normal 87 octane most consumers use. So the higher the ethanol content, the higher the octane.
https://mnbiofuels.org/media-mba/blo...-for-beginners
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Old 04-08-2019, 05:36 AM   #4
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Originally Posted by JockoT View Post
You will probably find that bikes for the Brazilian market have much lower compression ratios, or some such mod
As I said, "or some such mod". I was speculating that the models sold in Brazil were different from models sold elsewhere to cope with the fuel difference. Perhaps much higher compression ratios? The crux of my post was that different markets often have different specifications. Sorry if I confused the issue.
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