No. Truck was starting to read low oil pressure. Oil pressure was verified to be in Cat specs but on the low sides. Replaced Oil filter housing, and all relief valves. Replaced Oil cooler due to rubber deteriorating. Replaced Turbo mounting gasket, drain tube gasket, and oil supply gasket. Changed engine oil and filter. I almost never drive this truck. Sadly it sits most of the time. Vin 1NKDXU0X77J185524. Engine has been rebuilt but not by Cat.
So, all this was done after you noticed the oil temp? Or, what?
My experience with a C13 was a dumpster fire. In 10k miles, it got an oil cooler, radiator (not necessarily the engines fault), turbo bolts broke, and started losing oil pressure. Then, after replacing the filter base and all relief valves/springs, it lost pressure again. I changed the oil filter in Butler's yard in Dickinson, added a gallon of oil and made it home. By the next day, the oil sample they took when they changed filter base had came back positive for coolant. They figured the coolant was clogging the oil filter (never quite understood that, but whatever). Sold the truck, guy that bought it made it 60 miles to Jamestown and parked it at a truck shop, it got a new water pump then (that we paid for). Guy put about 1000 miles on it, and then it got an overhaul for a cracked head.
So, I ask again. Have you taken an oil sample since you were losing oil pressure?