when I first got my 3 and the dealer filled it up full, my info screen said 517miles. I knew that wasnt true and after each fill up it has declined. After my third fill up, it now says 353miles.
No, I don't push it anywhere near that close. Not good to let your car run low on fuel. Some of the components in the fuel system (fuel pump mainly) are cooled with fuel, so running low is not good. I normally don't even get the low fuel light on before I fuel up.and do you find yourself actually doing that many miles?