Stroken it 7.3,6.0,6.4
Well while I was talking to my mechanic at the dealership he was showing me a 6.4 that had the crank case over full. Apparently the guy didn't change his oil for 32,000 miles so the fuel that is passed by the rings durning regen over filled the crank case and in turned caused oil to poor out of the CCV into the turbos and the variable vane turbo had a complete melt down. He said when he took the lower I/C boot off there was about 3 quarts of oil that came out. When he showed me and I felt it there was at least an inch of play I could move the shaft around in circles witch eventually burnt up piston # 8. It was something to see. So the moral of my story is if you have a DPF still on change you oil frequently.