I'm a diesel man myself. I have owned them since I could drive. Right now, I have a 2006 F-350 SRW Crew Cab FX4 with an auto tranny. It's hard to believe that I get nearly 19 MPG in that 4x4 monster, but I don't drive like a pissed off teenager. And yes, it's a 6.0... with 236, 889 miles...