700km to a Tank in a GTI!

[kaanage]

the only thing is that they reckon you "shouldnt" use the vent function unless you're going to drive a hundred or so clicks before parking it in the sun etc etc (because of the gasses expanding).

For petrol definitely - not much of a worry for diesels since the vapour pressure is so much lower .

[Stuwey]

I averaged 8.2 over my recent 3600km trip. Heavy foot, a/c on for most of it, cruising at 120.

43 degree weather and 50kmh head winds don't help!

[Eddy]

Hoyhoy.

Me didn't know this trick, might have to try it out.
A mechanic once told me that over filling beyond the first click of the bowser gun could do harm to the catalic converter,
I never did understand how or why.
Can anyone explain.