"Graham" > wrote in message
...
> Ronny wrote:
>
> > BTW the guage and car are working perfect, and I am getting very healthy
MPG
> > 40mpg+ I was just curious.
>
> Jeremy Clarkson did an interesting test with this in an Audi (A6?). I
> forget the results but he did go for what seemed like a long time after
> it read 0 miles.
>
> I suspect it's just calibrated conservatively to make sure you don't
> actually run out unexpectedly.
>
> Do they still have reserve tanks? I thought they were done away with
> years ago.

The quattros don't have a reserve tank as such. It's an upside down 'U'
shape with a pump to transfer the fuel to the side where the fuel pump is.
This is to allow for the rear offside driveshaft. At least that's the way it
is on the B5 A4.

Richard