Jbkenn,
It doesn't have to be a FFV in order to run 10 percent ethanol. Any Toyota engine will handle that. You only have factor that in with 85/15 (85 ethanol/15 gas) - and no Toyota sold in the US should run that. I guess it has something to do with the aluminum block corroding from the alcohol.

And living in the Midwest, I get a good price on the ethanol 89.