I own a 2015 Ram Ecodiesel V-6. I recently noticed a black, oily film on the top of my coolant overflow tank. My first thought is that I have a head gasket leaking oil into my coolant. I have not noticed an oil loss or milky engine oil and the truck seems to run fine. The engine oil is, in my...
Hello I'm new to the ecodiesle community. Today I noticed that there is what looks like black soot on the walls of the coolant tank. Anyone have any ideas of what is the cause? I have a 2015 Laramie with 62,000 miles on it . Bought it used from the dealer black Friday weekend 2018. I hear it...