I haven't figured out the price per mile, but I'm sure it would even out- since they probably price it per BTU like we did for natural gas.
I was fueling the work truck and noticed the new blue hose...
I know mt S-10 V-6 went from about 22MPG to about 18 1/2 MPG when congress rewarded Big Ag by making us put food in our tanks.
So lets give that a try
22/ $2.92= 7.53
18.5/ $2.52= 7.34
Did I do that right?
It looks like it's about .2 cents more per mile for regular- unadulterated gas.
EDIT-
Anonymous gave me the right formula:
$/mile would be:
$2.92 / 22 = $0.133/mile, and
$2.52 / 18.5 = $0.136/mile.

