It's the first time I've hit that. When I bought the van the former owner was getting 13. I tuned it up and changed to K&N air filter and it jumped to 15. This 22 was a test at 63Mph.
EK sold the Sprinter on eBay I watched it go just a tad more than I wanted to pay haven't heard a peep from him in over a month, Vandriver is taking some slow time off, this I know.