I have the 2 litre hdi one and I'm getting around 42-44mpg. thats with alot of stopping and starting, on a along run you would get abit more. I was told the 1.9 are meant to be harder can't say as I've not owned one though
have a05 partner 1.9d, same as the berlingo. Gettin bout 600miles to 50quid. And thats not long distance driving, 20miles in one go may before stopping