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					Originally Posted by  Jamesp
					 
				 
				Ethanol is used as an oxygenate to promote lower emissions.  It has a lower fuel value (BTU/lb mass) than gasoline.  If I could get gasoline without ethanol I'd go that route and add a little octane booster. 
			
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So would it make sense that if you have pure gas it would  equal better performance as even with 93 octane it has 10% ethanol that degrades performance?