Hi Marty,
17,000 miles and running strong.
The V-8 6.6L Duramax will outrun any Sprinter, especially when pulling up hills.
I just ran from Charleston, SC to Detroit, MI with a 2,000lb load and got 22 mpg.
Personally, I think the Duramax is the best van engine available at this time. The engine carries a 100,000 mile warranty too!
If you know someone who is interested into getting started with a great organization I am going to sell mine, because I am specing out a straight truck. The person who gets my van will be getting a "Turn Key" business. They get a great truck and the van is already signed on with a great organization.