Biodiesel Congeals

A New York Times blog entry this morning reported that biodiesel was implicated in the stalling of school buses.  It was later updated to suggest that perhaps its reporting was based on inaccurate information and that good old fashioned diesel was to blame.  This has to make me wonder, have these transportation companies bothered to read up on the basics of diesel, specifically, biodiesel?  Diesel fuel has always had low temperature issues.  Biodiesel has low temperature issues that are much more significant.  This is not, however, new information.  It's also not insurmountable.  The Baltimore Biodiesel Co-Op runs 50/50 biodiesel / kerosene in the winter to deal with this.  Certainly if B99 or B100 is going to be in pumps across the country, this is perhaps of interest.  As long as only the educated can get it, they need to make sure to educate themselves. Even more, given it sounds like biodiesel wasn't even to blame, I am curious if anyone was even paying any attention to what they were putting in their busses.