Converting to use BIODIESEL

[dotdog]

HI - I run a Fiat Doblo Cargo with the 1.3 multijet, do a lot of miles, and can get Biodiesel at Enfuels in Thatcham at 96p/litre, which would make a significant saving, considering I'm doing more than 1000 miles a week.
Does anyone run bio in this vehicle - I know the fuel filter needs changing after 3 tankfulls then twice as often as usual, and that the breather pipes must be plasti/metal rather than rubber - fiat themselves haven't been too helful, so any advice appreciated

[dotdog]

ta- will research some more..

[dotdog]

Thanks all - some intelligent info here..

[dotdog]

For yuor interest - put half a tank of bio in - mpg on trip computer dropped from 50.2 av to 44.6 av!
and less crisp throttle response - took a couple of tankfuls of shell vpower diesel to restore to normal running...