ODD Mileage Dillema..........

[chachl3835]

First off 99 May of 99 truck F250 4x4 CC SRW Auto 7.3 PSD stock except DIY cold air intake Napa filter 6637. 210k


Ok guys I was heading out to Pittsburg this past weekend. I live just outside of Toledo and was taking the turnpike and the winding roads out to Burggetstown PA. I filled up @ home and got just outside of Cleveland and decided to fill up I had just over 1/2 of tank and to my shock I checked my mileage I was getting 11 MPG. WHAT THE HELL......I was using the cruise the whole time and up to this point it was not really hilly. I then decided to quit using the Cruise, and then got into the hills and mountains the checked my mileage and guess what I was getting 17MPG. I got to the place and had filled up twice both times there was just over half a tank left. I then came home on Sunday on one tank of diesel and have between 1/4 and 1/2 a tank and have not checked the milage but its looking good. Ok guys what gives about the 11MPG that is just crazy.......the only thing I did different was the cruise does this really make a difference in a diesel truck? I have no major mods I only have DIY cold air intake. Every thing else is stock. What is your guy's guesses

[d7rxr]

I always thought cruise was better...I'm lost.