I have been reading articles on Biodiesel including the one in this months issue of DP Mag. I am really getting geared into the idea of brewing my own biodiesel useing home kits that I have seen for $3000. There are not any biodiesel pumps in my local area anywhere. Is it safe to try this fuel on a 06 LLY and any idea about waranty violations. If I get serious enough I will contact my dealer and ask but I think I know the answer I'll hear from them.