Welcome to the BioDiesel Experience, danny.

That extra filter , us likely to gum up, only once, as the biodiesel CLEANS OUT your fuel tank and fuel lines. However, seeing as your car is a 2001 model, there may not be too much residue. I had no problems with my 1991 Landcruiser, whatsoever, when I first started using Biodiesel, back in 2001.

The bonuses are worth the change though, as Biodiesel is better for:

Your car, as Synthetic Oil is, as opposed to Mineral Oil

Your World, as Recycling is, for obvious environmental reason.

Your Pocket, in a dollar value too.

And, Your Nostrils;

As your exhaust will smell like a Barbeque (and not a truck) Bonus !