Originally Posted by Witch Doctor
What do you suggest that is critical if you don't mind me asking?
If the temp differential between the 2 while driving on flat land for 15 minutes while maintaining 60mph ever hits 15°f or more, it's time for a new oil cooler. Especially if you're seeing Temps spread of 20-30° or more.
Running with a clogged oil cooler increases the risk of superheating the EGR cooler which can cause it to crack internally. When this occurs it allows coolant to leak into the intake manifold. The coolant is then burned causing extreme pressures in the combustion chamber resulting in stretched headbolts and then blown head gasket(s).
Main objective when towing (stock), keep oil temp below 230°f. If you observe the oil temp climb high and doesn't recover quickly after pulling grade have it checked out for a clogged oil cooler.
Side note: the "clogging" of the oil cooler I speak of is on the coolant side NOT oil side of the cooler. A clogged oil cooler replacement will also require a coolant drain/flush and new coolant.
And that's a 6.0 in a nutshell.
And for me we continued to load up for our trip next month. Alright, gotta come clean, my DW packed. I would probably do it wrong. I'm fine with that.