I know matts F350 pulling my open with the ITB car loaded up in stock mode we where getting around 14mpg towing. I know pulling his pig of a trailer with the chip turned up we where in the 9mpg range, so unless that haulmark is way loaded up I couldnt see it getting down under 10mpg either.'

I wanted an F250 PSD CC short bed, then went looking for a not too abused pickup (I use it to get to the metro and use around the house as well as towing) in the end due to interest rates and 'employee pricing' im paying less for a brand new truck.