http://www.autoblog.com/2006/09/25/samba-de-honda-new-ffv-system-for-brazil/"The result, according to Honda, is that
its FFVs will have performance and fuel economy ratios that nearly equal those of their gasoline-only engines. The two prototypes revealed today, a Civic FFV and a Fit FFV, seem to bear this out. The Civic, when running on E100, generates 140PS at 6,200 rpm and 174 Nm of torque at 4,300 rpm. Fill it with an E22 mix and theose numbers only drop to 138 PS and 172 Nm (this torque peak arrives at 5,000 rpm). With the Fit, it's more of the same. On E100, it makes 83PS at 5,700 rpm and 119Nm of torque at 2,800 rpm. On E22, it drops to 80PS and 116 Nm at identical engine speeds."
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Gosh Detroit, what's the problem, your FFVs get about 26% less mpg on E85 vs E10?