Best domestic biodiesel sources???

[RichF]

What are the best home grown options for biodeisel?

 

Currently I buy from the local station which offers 20% biodiesel made from soy beans....just curious if there is a more viable option. I've read that used veggie oil can be converted for around 40 cent/gallon but I'm curious as to why it hasn't been looked into further; Is it due to the glycerin byproducts? Exactly what does happen to used veggie oi anyways:confused:

 

If kudzu could be converted into biodiesel...the south would rise again! From what I understand, the poop grows 6" per day during the warm season.