That is for WVO, because it needs to be over 100* before it will flow properly through the fuel system. Bio is NOT WVO, it can be made from WVO but the similarity ends there.

 

I realize they are not the same, but they both have a problem with gelling :

Biodiesel manufactured from soy has a cloud and pour point of
approximately 32F while yellow grease and tallow ranges in the fifty degree
area. When blending biodiesel manufactured from any feed stock it is equally
important to access the best base stock (relating to cold
properties) with your biodiesel.

http://omfuel.com/index.php?option=c...d=12&Itemid=28

 

Thanks for that link.

 

Most bio will gel somewhere around 45f. I just use 50f as a good place to start thinking about my fuel gelling.

 

Well I went for the b99, the attendant asked if I had #2 in the tank already and was just mentioning it because of the gelling issue. I just put in 10 gallons of #2 60~70 miles back so I was good from that stand point. I will say that although the b99 performed ok, I doubt I'll run it again. It didnt do too hot going over the low summits along I5 as the b20 does. Felt like I had an anchor out back for most of the 500 miles back to Sac. anyways, thanks for the input guys. much appreciated.