Zafira fuel gauge - johnny
Depending on which way I'm parking (and it's not a particularly steep camber ) my fuel gauge seems to vary about by a quarter of a tank. It also takes about five minutes to level out on the flat. Is this typical of Vauxhalls or is there some kind of damper mechanism that's getting stuck?
Zafira fuel gauge - David Horn
Typical of all cars, I imagine. The damping only has effect when you're driving the car and the fuel is sloshing about and remainging, on average, parallel to the ground. When parked up, the fuel settles on one side of the tank and hence you get a false low. The damping is working fine, which is indicated by the fact it takes 5 minutes for the gauge to level out.

Might also be your level sensor is at one side of the tank, so when you park on a particular camber the fuel is nearly all over the other side of the tank and away from the sensor. I wouldn't worry about it, the fuel gauge on my Astra used to change going around roundabouts.