I have done loads of research on this but keep finding conflicting info.

I know i would need to change the fuel filter after around 500 - 800 miles of use and that fuel economy may go down. I also read that on the German Audi website they say there cars are warrantied to run on 100 % biodiesel as long as your car is no newer than 2004. Mine is out of warranty anyway so that should be ok.


Is there anyone running a 2004 or similar year 1.9 tdi on biodiesel? I would more than likely use 80 / 20 % as its the winter over her in England.


Cheers guys.

 

(sorry i have posted this in the wrong bit. Can a mod move this to the B6 section please)

 

doesnt really matter since we didnt get diesel audis in america till a couple years ago. but considering you still have a 1.9 check out clubtdi.com. most of the stuff is on vw's, but theres a ton of info thats still applicable