E-85 is right at $2 a gallon. 91 is $2.70 or more. 93 is $3.00 +.

E-85 is cheaper per mile for me. :-)

 

When you talk about averages you're usually talking about burning a whole tank/commuting. In that case a larger turbo isn't even going to be in boost until 4k+. I'm going to the track on Monday. 3mpg?

 

i get 12mpg city/aggressive and 16mpg hwy. i usually fill up around 160-180miles.

im running 30r 1000cc injectors boosting 30psi.

i carry a 2 gallon jug in the trunk and fill up an extra 5 gallon jug when i go to the station.

e85 gas station is about 10 min from my house.