ALL GRADES OF GASOLINE HAVE ETHANOL IN IT - IT IS A FEDERAL MANDATE NOW!!
My understanding is all mid-grade gasoline has at least 10% ethanol and the government is wanting to boost that to 15%.
Right now, you can expect 10%, but if there is more than 10% ethanol, it must be posted on the pumps.
Most "high" grades of gasoline do not have the ethanol.
I got a tank of gasoline for my 1978 Honda motorcycle that had 15% ethanol. That was the worst mileage and preformance that bike had ever seen in it's 33 years that I rode it!