I have a 93 R32 GTS-T and the fuel light does not light up when turning on the ignition.
And incase you are wondering, the fuel light in my car does work because it came on today when i parked at work, i parked on the side of the road and the road dips a lot into the ditch so the car was on an angle and the light was on. When i pulled away after work the light wasnt on and the fuel gauge rose a bit again, but regardless it had done 500km so i knew it was time to fill up, but it took 51.5lts, so it wasnt terribly low!