Finished my first few fuel milage runs in my new tow rig this past week. I ran it under the conditions that it will have to handle week to week. I pulled my bobcat, ran around town, and pulled a light load to Greenville. I got 11.3 mpg, I was very happy with the power, and handling of the loads. 11.3 is ok I guess for a 8,500lbs gas truck, but I'd love to get a lil more! I'm wondering if anybody has ever used any of the tuners available for the V10, or any other fuel milage mods? What were the results, and what you liked best? Thanks.