Same here PB...truck can blend on the spot w/simple math.

So-what E? do you use in your everyday gasoline engines? Pickups-lawnmowers-cars-etc?

But maybe I should be asking in the original question.....why is only E10 offered to the public in most states? Why not E-17 or E-38?

Again, it seems to me that in IL at least, switching to E20 would almost double our consumption of ethanol. There is some E85 used....but that would be mostly on special newer vehicles.