fuel gauge

Im pretty sure im not the only one with this problem....is their anyway to correct your gas gauge to be more accurate? I can drive on full for like two days, but then when i get to a quarter of a tank, its like your pretty much on low fuel. Pretty much what im saying is that the first half of the tank is larger on the gauge is larger than the second half. Any type of way to correct this? Im pretty sure this was a problem on the old tahoes, but i didnt know if there was ever a solution.

I've noticed the same thing, for some reason it looks like if it drops off even quicker when using E85.