Help!
 

My friend has an 08 super duty with the 6.4.
130k miles. Fully deleted.

He was driving in Knoxville hauling roughly 10k lbs. Engine started running rough and bellowing white smoke from the exhaust. Has loss of power. There is also a small amount of oil on the ground under the engine. Not a lot, but enough to make a small puddle. He had pulled to the side of the highway. He decided to get it off the highway and drove it another mile. Not only did it start fine, but had enough power to drive another mile. Still idling rough and blowing smoke and leaking oil. Has anyone had this problem with the 6.4?