Welp....got the truck back from the dealership. Here's one for all of you to scratch your heads about. They replaced the intercooler hose that goes into the intake. I know that diesels and gas turbo'ed engines have a bit more blow-by than a normally aspirated engine, but I've only got 2800 miles on this truck. So, there was enough blow-by that caused a puddle of oil to collect in the IC hose as it enters the intake. Mine had a bad O-ring and allowed the oil to leak out, right on top of the motor. The drive belt tossed the oil around, which is what caused my big mess. The dealership swapped out the hose and cleaned it up. No oil leak now.......