I guess what I started to do was get some information as I am comparing SVO and Biodiesel as alternate non-foreign fuel sorces. What I did was created quite a bit of discussion, A good by product IMHO.
Here are somethings I've found out so far. First, you can use ethanol instead of methanol to produce biodiesel (reduces toxicity of process and is totally plant based). Second, in a mercedes with its robust IP you can run SVO with out modification, but only at 40 or above, and efficiency is lowered due to poor atomization. Third, I'm told it smells like popcorn. I will try and post some good informational links.
http://journeytoforever.org/biodiesel_mike.html
http://biodiesel.infopop.net/2/OpenTopic?a=srch&s=465094322&lv=Y
http://journeytoforever.org/biodiesel_svo.html