Wondering about those that may or may not have issues with the fuel gauge fluctuating or not reading below a certain level. I am curios because I recently removed my twin 12" subs and pulled the fuse on the sub amp to transport some tires rims. Since then, my fuel gauge has been MUCH more accurate. Only slight fluctuations. And for the first pretty much ever, the gauge is reading below a quarter tank. It usually never read below half a tank, even when on reserve. So in my case at least, I think the subs or bad amp wiring are the issue.

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1991 560 SEL / 185k miles
1992 750il / 17k miles - project car