I think I brought that up, because that's what I always thought it was. My PCV breather hose going into the intake hose before the throttle body takes a right turn and right there, it sags. It is possible for oil to get up there and pool, and possibly on the next start, suck it up. The IAC opens pretty far on start, that thing really wants to take off.

The problem is, because I put in only 6qts last time, I have not been able to reproduce the problem even when trying. And before, it was easy to do it if I wanted.

Weird... is the timing chain sitting in oil and spinning it up into the valve cover? Sounds like a long strange trip... Way too much oil on the cylinder walls, and after letting it sit the oil pools on top of the piston?

I think because of the 10 cylinders, and the fact that we need a balancing shaft to keep it right, there is an intermittent vacuum in the crankcase. The PCV may pulse, and if you catch it just right, it might actually blow oil out the PCV breather. In a V8, you have all pistons going in the right direction so crankcase pressure/vacuum is constant (given no blow-by). With a V10, there is always one or two pistons going in a slightly different direction and the PCV pressure fluctates. Haven't checked it yet, but I'm sure it does. Maybe it's related?

You can tell, I'm grasping at straws at this point...

ak