im thinking about buying this but am more curious to see what kind of mileage you guys are seeing with e85 and 87 octane. This will be a big deciding factor if i end up getting one or not due to the rising cost of gas

http://www.stuffforyourranger.com/st...57f8e573ad5018

 

It really depends on your driving habits and temperature. I'm up 2MPG on the Focus and 2.5 on the Explorer (23 HWY up from 21.5). If I let the Wife drive (afterall, it is her truck), he gets 1MPG better for a total of 18MPG (17 no tune).

 

I got about 1-2 mpg out of mine running the 87 octane. I have a tuner from Doug though, I'm not sure how different the programs are.

 

cuz i saw on dougs website the E85 mileage tune im wondering how many miles more per gallon i would get ?