Well just our luck, we get a good looking 2005 dodge ram 3500 with only 129000 miles on it to pull our 5th wheel and my wife gets sick. we have been looking for a good truck when we found this one. ...
My DP with the Cummins ISB has sit for 7 months a year for the last 15 years. Only time it is started during that time is when I change the oil or replace the fuel filters.
If you park it with a full tank of fuel and have diesel Sti-bil in it. Sitting doesn't hurt the engine any. Only problem you may have is if the battery has any drain on it while sitting. A battery maintainer will take care of that.