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trebuchet03 · 12-10-2008, 03:35 PM

Out of curiosity, because I can't remember.... When was ethanol first introduced into fuel? And, when did it become wide spread?

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I was looking on the wiki page.... E85 flex vehicles in 2006 averaged ~25% lower fuel economy... Ethanol has ~34% less energy per unit volume... So, despite having 66% of the energy, you keep 75% of the economy.... I looked at the Monte Carlo in 2005 (not flex) and 2006 (flex fuel) - both model years have the same gasoline consumption - but the 2006 has a larger displacement engine. Both cars get piss poor FE regardless of fuel type

Not defending, but I'm glad to see any gains at all in thermal efficiency

12-10-2008, 03:35 PM	#13 (permalink)
trebuchet03 MechE Join Date: Dec 2007 Location: Bay Area Posts: 1,151 The Miata - '01 Mazda MX-5 Miata Thanks: 0 Thanked 22 Times in 18 Posts	Out of curiosity, because I can't remember.... When was ethanol first introduced into fuel? And, when did it become wide spread? ------ I was looking on the wiki page.... E85 flex vehicles in 2006 averaged ~25% lower fuel economy... Ethanol has ~34% less energy per unit volume... So, despite having 66% of the energy, you keep 75% of the economy.... I looked at the Monte Carlo in 2005 (not flex) and 2006 (flex fuel) - both model years have the same gasoline consumption - but the 2006 has a larger displacement engine. Both cars get piss poor FE regardless of fuel type Not defending, but I'm glad to see any gains at all in thermal efficiency __________________ Cars have not created a new problem. They merely made more urgent the necessity to solve existing ones.