[Carol90]

I just filled up - but I got 398 miles over full tank.
i remember full tank was showing 412 miles when I first got the car. Is this normal?

 

[simple]

It's adjusted based on your driving activity, etc. You can look in your journey logs and see the trip computers.

When I'm doing mostly City driving, I'm getting less than 350 miles a tank in a P400. If I'm doing mostly highway, I get just slightly over 400 miles to the tank.