Fuel question? with characters to make 20 long?

Question

i noticed sometimes i can buy a tank of fuel and it is gone in a few hours, other times my fuel will last me 2 weeks like it has for the last years since i owned my car.

i'm told i'm getting unblended ethanol instead of blended gasoline and ethanol

anyone investigated this and know for sure

Answer 1

Ethanol is listed on the pump as E85.