mercedes and western star good or bad?

I have an '06 western star 4900FA with the MBE4000 motor. I have no complaints about the truck, it's quiet, well insulated and not a squeek or rattle in it. The motor is a love hate relationship, at times it seems underpowered but they can get decent mileage. I would say see if the dealership will let you use a truck or two for a few days to a week to see how you get along with it and decide from there. As far as the torque/power on the mercedes there's a few places that sell tuners/programmers for them as well as having the ECM flashed although some people dont recomend doing this.

 

I've got lo pro 22.5 rubber with 3:42 gears and a 13 speed and it seems to pull it just fine in overdrive altho there are times I run it in Direct if there's a headwind or a hard pull. Even today with a 40mph side wind grossing out at 86,000lbs I still averaged 6.0 MPG which I didn't think was to bad considering the wind, terrain and alot of stop and go driving on two lane roads and through towns.