For what it's worth, here is an EPA estimate for a Flexfuel Chevy Tahoe 1500 2WD:
City Hwy
Gas 14 20
E85 11 15
The E85 comes out ahead in the EPA's "Carbon Footprint" rating (tons/yr of CO2): 9.2 vs 11.4.
I've never seen E85 here in New England, so I'm curious how much is a gallon of E85?
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