I did the math once. It has saved me well into the 100s of hours not seeking gas stations and filling up in the nearly million miles of my driving history.

I've had one fuel pump die on me while driving (stranded) and it only happened BECAUSE of the erroneous concept that 1/4 tank rule helps (absolutely does not: prove me wrong you can't)*

* I only drive x5 wife has one I have one so only applying to x5. Supposition and myth does not apply proof requires absolute fact.


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