Cost Forcasting concerning Dump Truck Operations

So you will gross 60K the weight is not as important as the your average speed are you running down the freeway or in town but you should do 6.5 considering your HP is so low, Its had to tell you loaded and empty milage separately I never had the time to fuel up after a 20 mile loaded run and then fill up again after the empty run back. They seem to loose turbos on a regular basis mine would get about 200k miles between blowing up but mine was a 370 hp at 1450 tq hauling 80K. change the oil every 10K to 12K.
I did like mine right up until it tossed a rod through the block I had a driver in it so I really don't know what happened to it, total miles about 700K miles with one rebuild because of a broken intake hose and it dusted the rings, it got about 400K on that rebuild.