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To: miraje who wrote (12936)	9/9/2006 8:04:21 AM
From: John F. Dowd	Respond to of 19790

Jim: although ethanols octane rating is quite a bit higher (why some race cars use it). Independent testing has shown that a vehicles MPG decreases around 20 to 25 per cent when using E85 compared to pure unleaded gas Perfect example of junk science. Now although the statement is true, it really didn't need a study to show that the BTU's bound up in a gallon of ethanol are less than that in a gallon of diesel or gasoline. This is a given in Chemistry. The reason race cars use it is that it detonates at a higher compression ratio and has a better flame front propagation pattern. Again this has been known for decades. In fact if you have ever cooked on an alcohol stove on a boat and payed attention you would have discovered this.