Re: Is this normal?
Mate, when I had my 156 V6 I found the fuel gauge would constantly be telling me different stories. I can whole heartedly confirm that this is in fact an 'Alfa Trait'.
There have been quite a few discussions regarding this and everyone has usually ended up agreeing on the fact that it is an Alfa Trait you learn to live with.
If you aren't perfectly flat, and perfectly stationary, it will tell you a world of lies! Mine used to read at around 3/4 at the end of a journey, then when I got back in I would suddenly have lost 1/4 + of petrol somehow! It was just one of those things.
Then again, my Galant does the same thing.
But Alfas are fairly notorious for fuel gauge issues bud so don't worry about it and enjoy your car, just make sure you always fill it up the second the orange light comes on. Or before if you can.
Happy motoring mate and welcome to the club!