Hmm its definately not great on fuel, I filled her up and drove similar distance as Griffo and the flashing orange light came on coming through the main entrance to Pod, that was taking it steady aswell. I suspect she needs a tune! Will get that sorted.
Basically I just need diesel economy at the moment so I can afford to do the work on my 13

I worked it out that Im getting less than 20mpg when driving steady and considerably less when throttling it.