Kayteg1 wrote:
From what I remember from 6l is, that it is the delta between oil and coolant temperatures that is critical as it indicate clog oil cooler.
I replaced oil cooler on my truck twice and it is not leaving good memories.
This is beside TC forum anyway, so have a nice vacations.
Yes, that is a critical thing to watch, along with exhaust gas temps. Sustained 15 degrees difference means there is a problem with the cooler. Unaddressed, the failure of the oil cooler leads to failure of the EGR cooler and, ultimately, blown head gaskets. Using correct coolant and not mixing any old coolant from AutoZone is important, as is keeping on top of maintenance, using only Motorcraft filters, etc. The problems with the 6.0 are well known at this point 13 years after the end of production... and so are the definitive solutions. It's a fine, pre-emissions engine that happy and responsible owners are getting 500k miles or more on... if they correctly address the issues, which some owners ignored and allowed to spiral out of control. Is what it is.
Of course, I'll keep this thread updated, and if my engine blows up on me all of a sudden on the road, I'll come back and tell it straight.