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.Here are my questions:
1.)Can I just start running W85 immediately or do I need to wean the truck onto a W85 mixture?
Absolutely no problem at all, running D2 with W85/WMO.2.) If I run out for whatever reason, can I immediately switch back to a few tanks of straight D2 on occasion?
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.3.) Is there any problem with running large amounts of synthetic?
4.)Any problem running a random mixture of WMO & ATF with 15% UG?
Go for it!5.) Any problems with dumping a mixture of W85 into a tank half full of straight D2?