You definitely don't. I feel quite vindicated in my practice of wait for the low fuel light and then look for the next convenient station within about 1gal away. The surge tank system in the x5 is nearly flawless. I've had cars with 1/4 tank not start from being on a sloped driveway, that is impossible with x5! You can use 95% of your fuel tank at any pitch or roll attitude!


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2011 E70 • N55 (me)
2012 E70 • N63 (wife)