Attention: TDR Forum Junkies 
This analysis shows the newest analysis along with previous ones on my 2007.5.
As can be seen the fuel in oil on the one to the far right is before I deleted. I have used Rotella T6 since I bought the truck with 72K miles. The previous owner said that's what he used also.
The newest one is after I pulled my 15K 40 ft 5th wheel from Little Rock to Nashville, TN then to Atlanta through the mountains (some 6-7% grades). The 68RFE never shifted below 4thnor exceeded 175 degrees (sensor in deep pan) on the long steep grades and I maintained 50-55 mph(it was upper 80's) (slow in town was a different story). I normally change oil at 10K miles but went longer on this one because of travels.
I have used this company for many years. If they see something quite a bit out of normal they will call you. It cost $27 now.
As can be seen the fuel in oil on the one to the far right is before I deleted. I have used Rotella T6 since I bought the truck with 72K miles. The previous owner said that's what he used also.
The newest one is after I pulled my 15K 40 ft 5th wheel from Little Rock to Nashville, TN then to Atlanta through the mountains (some 6-7% grades). The 68RFE never shifted below 4thnor exceeded 175 degrees (sensor in deep pan) on the long steep grades and I maintained 50-55 mph(it was upper 80's) (slow in town was a different story). I normally change oil at 10K miles but went longer on this one because of travels.
I have used this company for many years. If they see something quite a bit out of normal they will call you. It cost $27 now.
