I used to run my tank low to get the crap out of it and into the filter. If you do it all the time, you don't screw up the pump the one time you run out of gas. Since then, I realized that for the short amount of time I usually own a car, it doesn't really make any difference.
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"¿ʞɐǝɹɟ ɐ ǝɹ,noʎ uǝɥʍ 'ʇı ʇ,usı 'ʎlǝuol s,ʇı"
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