I just topped off my tank today for this first time using biodiesel. I went to this station http://www.bioblendfuels.com/about/, lucky for me it is only about 25 miles from my home and about 12 from where my wife works. I put about 6 gallons of B99 in the tank and 5 more in a "diesel" can. The B99 is made from canola and is good until +29*F, which I was pretty impressed with. I just bought the car the weekend before last so I have only filled it up one other time, but there were no bio stations around when I needed it. I know for this area I feel lucky to have access to this station so close. And just because here is a pic of the new wagon...