HI highflier, Your a lucky guy, I bought my 2008 6.4PSD SC LB 4X2 last week, only have 241 miles, I check the computer for MPG and it said 9.2 MPG, WTF !!! My 1999 7.3 would give me 15.5 to 19.0 MPG with A/C on and me driving it like I stole it, and in BAD TRAFFIC, MOTHER FLECTHER, I should have...