Been running E85 for a couple weeks. Oz Omega tune. Don't really notice any difference besides losing 2 MPG.

 

I looked around and it would be a 50 mile round trip. Not worth it. Sticking with 87 unless towing is on the cards. Then its 92.

 

nothing wrong running E85 around town, (Denver area) that's what I do most of the time when not expecting to hit the HI way anytime soon. E85's benefit come in with 1. Towing, 2 Cost and 3. connected with #1, power but if you have a flex like I do any mix of fuel even without a tune (I have the Omega Tune) the ECU will adjust for it, you don't have to run it empty or even near empty just expect mpg's to drop on the highway, in town I don't much care, it's a "Truck"!!!

 

Run E85 all summer, 91 in cold winters