by nature boy » Wed Mar 13, 2013 1:53 am
i guess it depends on the shape and size of your tank, but i wouldn't run that low because the fuel sitting at the bottom of your tank isn't just going to just sit there, it's going to move around as you turn, accelerate and slow down. so who knows what kind of gunk collected at the bottom of the tank would be sucked up into your injectors and clogging them up. it might not happen right away, but it'll slowly eat away at them.
at least that's what i read and so i usually fill up when i have around a quarter tank left. very rarely do i see that light, and if i do my next stop is a gas station, no exceptions.