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Everything Dirt Bike
General Dirt Bike
Does race gas (high octane) burn hotter?
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<blockquote data-quote="cleonard" data-source="post: 67810" data-attributes="member: 21"><p>Combustion temperature and octane are pretty much unrelated. Now fuel is a complicated mixture of many different components. There is some variation in combustion temps between the different chemicals that make up a particular fuel. For example alcohol has a high octane, but a relatively lower combustion temp. One chemical that you don't want in your fuel is n-heptane. It's the zero reference for an octane measurement. It will burn hotter than the alcohol. I don't know the exact numbers, but I think that an aromatic like toluene which is 114 octane rating will burn a bit hotter than the n-heptane.</p></blockquote><p></p>
[QUOTE="cleonard, post: 67810, member: 21"] Combustion temperature and octane are pretty much unrelated. Now fuel is a complicated mixture of many different components. There is some variation in combustion temps between the different chemicals that make up a particular fuel. For example alcohol has a high octane, but a relatively lower combustion temp. One chemical that you don't want in your fuel is n-heptane. It's the zero reference for an octane measurement. It will burn hotter than the alcohol. I don't know the exact numbers, but I think that an aromatic like toluene which is 114 octane rating will burn a bit hotter than the n-heptane. [/QUOTE]
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Everything Dirt Bike
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Does race gas (high octane) burn hotter?
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