6.4 Oil in the coolant resevoir
Can someone please help me out here. I have an 08 f450 that i am loosing coolant somewhere but its not leaking onto the ground and its not coming out of the tail pipe. When i refill the resevoir it has oil in the tank. Its not running bad and its not smoking or anything like that its just losing coolant and oil in the tank. I have been given two scenario's and one is the oil cooler,egr cooler gone bad and the second one is that the front cover has cavitated behind the water pump so which of these sounds like the most obvious problem and how much should this cost to repair and if this is one of the problems what else do i need to look at or make sure that something else didn't get bothered by this situation. If anyone can please advise me i would greatly appreciate it. Have a good day people.....