I'm running B100 (or is it B99) as well, car runs very smooth. changed the fuel
filters twice after 6 fill ups. The last time I changed them the main filter was full with grudge but the pre-filter was still clean. Replaced all the injector lines, started to wheep and the grommet around the fuel filler, eaten away by spilling bio diesel. It took some of the paint of around the filler. Engine runs very smooth and mileage is a little less.
The best thing it's an all American product, non of my money to the sheiks!