Threw in 3 gallons of E85 to a tank of 12 gallons. I am guessing the E85 is closer to E60 this time of year. This would put me anywhere from 20% to 30% ethanol.
Traction was a bit of an issue on my winter tires (205/50/17). They grip really well in this 32f weather though compared to 255 RS3's.