Just been doing a little research and fell upon this site.
http://www.rixbiodiesel.co.uk/
It seems that the fuel is covered by SEAT for warranty purposes, after cars built in 96 onwards. They even advertise Biodiesel forcourts
- so how much is this compared to the norm? Theres a guy at work currently running a Ford TDCI 1.4 on cooking oil - he has an old motrobike tank in the passenger footwell and all the gubbins is linked to the engine - car is running no problems.
Could be an option with fuel reaching the £1 mark.
http://www.rixbiodiesel.co.uk/
It seems that the fuel is covered by SEAT for warranty purposes, after cars built in 96 onwards. They even advertise Biodiesel forcourts
Could be an option with fuel reaching the £1 mark.