I don't know if the Ford dealer even carries Rotella T. Lately I've been going to Walmart. For those of you who know about my horror stories with Walmart and oil changes, well, I now go only to those who have a pit for changing oil. No lifts.
It's also cheaper if you buy the oil and carry it into the service area when you get there. If you buy the gallons they'll use them and credit back the usual oil charge. If you don't take in the oil, they'll use the quart bottles and that way is more expensive. Most walmarts now carry the 6.0's Motorcraft oil filter, too. They pretty much all carry the filter for the 7.3.
See another Montana or Mountaineer on the road? Flash lights twice, it might be one of us!
Steve Reigle (pronounced Regal)
Fulltiming since 3/21/03
'07 3400RL
'05 Ford F250 SD Lariat CC SB 6.0L PSD/TS FX4 4x4
Our RV Travels (now Firefox-compatible)