Well, just to shit further on you
I managed to get 460 mile out of one tank of petrol, from a 1.6 Golf. I think if I was even more careful, I could probably hit 500.
( magnum, Thu 25 Jun 2009, 20:43, archived)

That's a good thing
And the last car I contributed money for the fuel of, was an 1988 MMC Pajero (Japanese Mitsubishi Turbo). In the summer, it ran off about 1/10th diesel, the rest vegetable oil from Lidl.
( Methylene Blue - electrohead, Thu 25 Jun 2009, 20:46, archived)