I run it to the light usually, i know, its very bad for it, but it runs in the family i swear. To my dad if the light comes on, the tank is damn near full and your good to go! Changing the fuel filter once a year helps as well! I put Superstore Premium 91 in my car, has made 220 kms and has just burnt over a half tank, usually its a 1/4 tank by now, the gage is off by a bit though, the needle goes past the F by a bit when i fill it.
Damien-they don't make them like this anymore
97 SSEi. 3.2mps,msd,optima,1.9 YTs,245 RE750s,SLP Headers,custom ported SC inlet/outlet, 180 deg, INTENSE pcm,42.5#injectors,255lph pump,custom soilid motor mount, 3.0 mps(maybe), and the nut behind the wheel.