Biodiesel and Petrodiesel in Taipei?

Does anyone know if it is possible to purchase biodiesel in Taipei? I saw that they use 20% Biodiesel and 80% Petrodiesel in some city buses, just curious if it is available to consumers as 100% biodiesel B100, not B20?

Also, anyone know if regular diesel is cheaper than gasoline in Taiwan?

Nevermind. I need to rethink things and do more research after reading this article. … 24,00.html

I’m woried too about where biofuels come from.
If they are made from vaste they will do good, but if harvested for fuel use it only make everything worse.