1st blend is not my thing because I am done with RUG.
Can't stand the stuff.
2cd blend is dangerous because of possible damage, 1st included:
http://biodiesel.infopop.cc/eve/ubb.x?q=Y&a=tpc&s=447609751&f=159605551&m=563103245&p=1
I am all for SVO. I do think you have to heat it properly in a two tank system to do it right....
Here are the folks putting tremendous effort into figuring out veg options:
http://biodiesel.infopop.cc/6/ubb.x?a=frm&s=447609751&f=159605551