Will an AFN engine run on Veg oil?

It would be nice as Diesel around here's Hit 1.42 a litre! Anyone know the ins and out off the fuel pump etc and if I need to mix it?
 
one of the guys at work runs his pajero on veg oil. he says that he wouldnt chance it in cold weather tho as it starts to thicken up. just something to consider
 
any update on this ? fuel economy, car reliability & driveability etc
 
To be honest if your car's a shed then go for it ! I have used my old IDI Ford fiesta courier van on straight vegetable oil for a few years and apart from less Mpg, harder starts and decreased performance i did not see the advantage ! Yes, i could get oil under 15 quid for 20L cans but then the starter gave me issues so i had to get a HD one, then i had to use a larger HD battery + new injectors and so on! The last fuel filter before i sold it was full of marmelade !