gads I love this place, one of the few sites where an intelligent discussion degenerates into a melee on about one in every four topics. Crap, stick to topic and get over whoever it is you think is a jerk (Notice: I point no fingers in any direction!)
For the topic I scale out at 36K gross with a Detroit Series 60, 330/380hp@1250FP and get around 9-9.5 mpg if I keep my foot out of it and stay around 60 mph. Yeah, I know and I stay in the left lane also.