We have a 2005/6 Mandalay with a Cummins 400 ISL and we have had trouble with overheating ( alarms going off at 225 + ) and I always blamed the problem on 1) towing a Jeep G.C., 2) climbing the hills and mountians between Texas, Minnesota, Washington state and Oregon, 3) the amount of weight we carried in the RV. It appears to me that the size of the side mounted raditator may be the main problem and I believe that either Freightliner or Mandalay should issue a recall and replacement because it was not designed with the right suze
