You might as well save your breath on these people. We explain and explain it to them and they still want to argue. I come on here to learn something and share information,not to argue with children. I run @600 miles a day too,it now takes me right at 5 hrs each way--I use to do it in 4.5. I HAVE even ran it in 4 with a 48 and a good load. I'm working at least an extra hour a day,but still making the same pay. I'm using more fuel,while they are trying to convince me that I'm saving fuel. Maybe I was born at night,but it wasn't last night.