I've had a 90 GMC for less than a year now and have ran out of gas three times and almost ran out several other times. I don't know what it is... haven't ran out of gas in 20 years... has to be something about the gauge placement. Or, I've been driving Fords for a long time... maybe I got used to looking in the bottom left instead of the top right. Dunno.
Anyway, I was thinking about putting an aftermarket gauge on it like this 2" Sunpro from J. C. Whitney:
Tom