I have seen oil analysis reports on the 6. 7L Engine that have only <0. 5% fuel in the oil with 3,500 miles on the oil. I'm not saying all of the 6. 7L engines are going to dilute the oil with fuel with fewer miles, but just pointing out that they are not all the same, regardless of what the computer is saying. The very best way to see oil dilution is by useing oil analysis!