my buddy has been driving a kodiac accross the counrty hauling 2 cars at a time. he has been out on the road for a few weeks. he called me just a minute ago and says he started climbing a hill in georgia and all of a sudden the truck started rolling blue and white smoke, oil pressure went to 80, boost wont go over 20. pulled off and said its skipping real bad at idle. said it hasnt been cut off but 2 times in 3000 miles. its got a ppe execelartor on it, and he says its set on level 3. i think he melted a piston? anybody got any suggestions