Dashboard fuel gage does not always register correctly on 1995 Chevrolet Camaro

The fuel gage on the dashboard does not always read correctly. What might possibly be the problem?

1 answer
The fuel tank in our camaro's is 'V' shaped, so when it says it's 1/2 full, it's really 1/4 full. When it says 1/4 full, it's almost empty. Nothing wrong with the gauge, just the design.