Delighted to break the 50 MPG barrier! - Toyota Yaris Forums

Yaris Hilton · 06-17-2010, 01:45 PM

I don't trust the pure-gas.org list. I suspect a lot of those stations just don't have the ethanol stickers posted. Anyway, I don't mind burning E10. 3.4% less energy volumetrically just means you have to take that into account if comparing mileage of the two blends. Pre-ethanol gas since the late '90s had oxygenates in it at about a 2% oxygen level, just a bit less than E10, meaning the energy loss from "pure" gasoline was just a bit less than with E10 as well. Ethanol is not worse for our cars than MTBE or other "oxygenates." It's silly to make a big issue out of avoiding it as a consumer. As public policy, it's stupid to grow corn and make fuel out of it.

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06-17-2010, 01:45 PM	#29
Yaris Hilton Half a Bubble Off Plumb Drives: 2009 Yaris Sedan Join Date: Mar 2009 Location: Bristol, Tennessee, USA Posts: 1,593	I don't trust the pure-gas.org list. I suspect a lot of those stations just don't have the ethanol stickers posted. Anyway, I don't mind burning E10. 3.4% less energy volumetrically just means you have to take that into account if comparing mileage of the two blends. Pre-ethanol gas since the late '90s had oxygenates in it at about a 2% oxygen level, just a bit less than E10, meaning the energy loss from "pure" gasoline was just a bit less than with E10 as well. Ethanol is not worse for our cars than MTBE or other "oxygenates." It's silly to make a big issue out of avoiding it as a consumer. As public policy, it's stupid to grow corn and make fuel out of it.