difference in bio-diesel?

[DÜB DÖLL]

I know there is a difference in regular "dino-diesel" and bio-diesel.
but what is the difference between the different bio-diesels?
can I run them all in my TDI with out any adverse effects?
do I need to change anything in the motor to be able to run bio-diesel?

I apologize for all the newby questions. I just picked up a 2009 Jetta Sport Wagon 2.0TDI. I'm not really in the whole car scene, just looking for a few quick answer.

thanks fellas.

[DÜB DÖLL]

and any tips on getting the best millage, since that was my main reason for getting this car, would very helpful and appreciated.

driving from Cali to GA, currently in vegas. the less stops I have to make at the pump the better.

[Rockerchick]

I'd run very low percentages of bio, B5 at the most in that. I don't think bio works all that well with the new clean diesels, and anything above B5 will void your warranty if you still have one.

Read up over on TDI Club. Lots of info on using Biodiesel in TDIs.

[DÜB DÖLL]

no warranty on it. I thought it was a bit weird being as I bought it from a VW dealership.

and thank you. I will be sure to do so.