I filled up with 7 gallons of E85 (@$1.90) and 6.4 gallons of 87 octane (@$1.94). I'm running about 40.35% ethanol in the tank.
It came pretty close to throwing a code. I saw 25 on long term fuel trim a couple of times. But I'm pretty sure that, if I was going to get a code, I'd have gotten it by now.
Seeing as how the price of E85 hasn't changed in over a month, I'm pretty sure that they're still selling winter blend E85 (at 70% ethanol content). Based on my LTFT, I think that there's no question that it is winter blend.