Do you have any large mountains that you climb? I think that all the people that are getting better than 15 mpg probably don't do much climbing. I've not been back east but I heard it was pretty flat.
fuel economy no good
I thought I was reprogramming the ecm with the tuners that I was putting on that is why I tried so many different ones 4 to be exact SCT with DPF delete, then I stacked it with a edge juice but that didn't seem to help with the economy but tons of power then I went to a...
Programmers for 6.4
I've put on 4 different tuners trying to get better MPG but not much luck.
SCT, Edge Evolution, Edge Juice and Bullydog. I had the Bullydog on and was pulling my camp trailer up a steep mountain grade and blew the turbo intercoolor tube off, and burned up both turbo's...
I am confused at how these posts say that you can get 20 mpg from the 6.4, I have spent thousands of dollars and a lot of time trying to get better Fuel economy I've tried 4 different tuners, full exhaust system, cold air intake, Ams oil synthetics, HHO generator, and now I am debating on CNG...