In article ,
"David Courtney" wrote:

One of the stations here is selling gasoline, E10, E20, E30, and E85...
and they only need two tanks to do it (one gasoline and one ethanol).

Gee, just like SUNOCO did many, many moons ago, with their octane
ratings. What the hell did they used to call that system? Oh, yeah,
Custom Blending." SUNOCO 190 to 260, lower than regular to Muscle Car
Joy Juice at 102 octane.