Wednesday, June 17, 2009

Low Fuel Light As Indicator of Fuel Economy

This morning I thought of something as this tank neared 400 miles so
far on my commute to work. I wondered if the miles driven prior to the
low fuel light turning on for good had any relation to overall fuel

So I spent a few minutes whipping up a couple of charts, and it appears
that there is a correlation between the time the low fuel light turns on
and the overall fuel economy for the tank.

File under "obvious," I guess, but it's kind of nice to know that when I
see that light turn on after I have gone 400 miles, it means I'm on
track for 38 mpg or better.

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