Eric,

New info to pack into my puny brain cells. Thanks for the correction. I am trying to get a good knowledge of this cause it helps me understand the ins and outs of using WVO and biodiesel.

So you are saying there is an actual structure called Octane but when it comes to the measureing tool of anti knock in gasoline it has nothing to do with the structure of the same name; it is just a measure? I ask this cause I read that in fuels for a diesel engine you want a high Cetane measure and a low octane measure. Is there a "cetane" chemical structor as well?

__________________
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