the Transit has just cost £90 to fill up!
It'll do around 400 miles for that!
I used biodiesel for a while last year and it was fine, but the supplier got flooded and the fuel was contaminated. The van never ran the same after that til it went back on the ordinary diesel.
I used to car share a few years ago, it's great until you want to work late, or not, and holidays can be a nightmare.