mines a bit like a yoyo, it does not move massively but i look 1 min and i have 1/2 a tank, then i look again ang its a bit under, then i look again and its a bit over, is this normal?
I thought it was dependant on your average mpg as to how the computer works out when you're down to your last 50 miles, so if you've got crap mpg the light will come on higher up the gauge?