Quote Originally Posted by rot View Post
Well maybe I is a doofus here, but I only see references sited from 2 places...the Energy in America article and the Intota whatever... I am not sure what Paul's original post points to (thought that was the dodecane one) but so be it.
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rot,

I'm the doofus here, I'm afraid. I looked at the thread again and realized that the starting post was not made by Paul at all! It was the actual mileage data listed in the first post by WN9xxx (can't scroll back while editing, sorry, OM) which I was using.

That got me to searching the web again, and I found this blurb on a site called www.turborick.com. I'm not gonna vouch for accuracy, but here's what I found:

Gasoline contains over 500 hydrocarbons that may have between 3 to 12 carbons, and gasoline used to have a boiling range from 30C to 220C at atmospheric pressure. The boiling range is narrowing as the initial boiling point is increasing, and the final boiling point is decreasing, both changes are for environmental reasons. Detailed descriptions of structures can be found in any chemical or petroleum text discussing gasolines.
What I found surprising was the spread of carbon count (I can buy a heavily branched C12, but I would have guessed any C3 would evaporate out, unless it's part of a high-boiling azeotrope). It also supports your statement that any dodecane is probably being sold as a separate diesel fraction.

I agree that Paul has found less than a true expert, and should probably delete the item from his Favorites list. But the mileage data from the first post in the thread is still interesting.

73,

.dale.