I would be prepared to do a couple of filter changes. WMO has a tendency to clean out a fuel system. You won't be going to a different type of fuel, as much as a different mixture of the same basic type of fuel.
Absolutely no problem at all, running D2 with W85/WMO.
Some have reported issues, with synthetic oils not burning very well. I tried burning some synthetic one time and it didn't burn too good for me.
Go for it!