I'm going to run straight WVO when mine's done. I'll be using the kit from vegistroke.com. We've converted a lot of 7.3 Turbos, 7.3 powerstrokes, and cummins' to run on it, but this will be our first 6.0, and our first bought kit. I have a great uncle in Louisiana that converted his '04 when it was new and says he still hasn't had any problems. He just makes sure that it's good and warm before he switches tanks and keeps an eye on his filters.