<div class='quotetop'>QUOTE(lenjack @ Sep 6 2007, 09:05 PM) [snapback]508240[/snapback]</div> try to find one without ethanol if you can, it hurts mpg
I use only E10. I'd rather use a renewable fuel as much as I can. I think using carbon which has been captured from the atmosphere means I am contributing slightly less carbon to the environment. I think this is more important than the number on my display. I haven't noticed an increase in fuel consumption on E10, maybe if I switch to standard petrol I might. E10 is 3c per litre cheaper than straight petrol which is due to lower duty on it.
<div class='quotetop'>QUOTE(SureValla @ Sep 6 2007, 09:06 PM) [snapback]508242[/snapback]</div> I always use E10 - because I support renewable fuels - and I still get 55 MPG in my Prius. If that's a sacrifice, I'll take it. :lol:
Regular. 87 octane. I think, but I'm not sure, that it's always E10. I think E10 may be the only kind of regular I can get around here (NY)?
<div class='quotetop'>QUOTE(arolf @ Sep 7 2007, 01:20 PM) [snapback]508357[/snapback]</div> Ethanol has a lower energy density than petrol Energy density of Ethanol = 24 MJ/litre Energy density of petrol = 34.6MJ/litre Energy density of E10 = 28.06MJ/litre From http://en.wikipedia.org/wiki/Energy_density I have my doubts about these figures as they indicate ethanol has negative energy when added to petrol?? This may be more acurate Ethanol = 84,600BTU/Gallon Petrol = 125,000BTU/Gallon E10 = 120,900BTU/Gallon Less than 4% less energy in E10 than in petrol From http://en.wikipedia.org/wiki/Gasoline
