Quote Originally Posted by artcarney_agr View Post
I know that with my truck, E85 has to be at least $1 less per gallon than regular for me to see any benefit.......without taking into account the additional maintenance required that comes with using E85....
Okay, after checking the numbers again, it's not quite $1, but close.

If you don't know your MPG with E85, here's a good source:
http://fueleconomy.net/feg/bymake/bymanuNF.shtml

A handy calculator is found here to compare the cost of E85 vs. reg. unleaded:
http://e85prices.com/

My truck is a 2006 Ford F150 4WD 5.4L V8
I'm getting about 14 mpg driving around here in the city of Louisville.

Comparatively, I'll get about 11 mpg with E85.

Reg. 87 gas this morning was $3.75 by my house.
E-85 was $3.15 here by work.

Using the calculator, E85 would need to be at $2.94 to be comparable to Reg. 87 at $3.75
-OR-
If E85 holds at $3.15, then 87 would have to hit $4.00 to see any benefit.