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Old 04-20-2010, 09:28 PM   #86 (permalink)
rmay635703
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Join Date: Jun 2008
Location: Somewhere in WI
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Silver - '10 Chevy Cobalt XFE
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Ethanol does not always negate fuel economy. My dodge and buick in the winter running a 50/50 mix (or a little better on e85) were always able to get the same FE that I could expect from the normal Kwiq trip garbage.

In fact on the dodge I was up a MPG compared to normal but the effect does not seem to run into summer. Although my FE was almost within the margin of error lower on both vehicles. Given its $0.60-$1 less around here it is generally worthwhile since my FE is indistinguishable.

Winter gas must suck.