Just wondered if it was possible for it to run on it. I have a S reg A4

 

I ran the A4 I rented in Europe on bio for 1200kms. It ran fine.

 

if you have a deisel engine you should be able to

 

Just wondered if it will damage the injectors etc.

From what i have read, the older diesel cars run fine, but modern diesels with the various bits and bobs may struggle.

I'm interested to try it out and make my own bio-diesel, but don't want to ruin the engine/fuel pump