Tuesday, February 19, 2008

Tank 146 - 19 February 2008

Filled up this morning at Woodbridge Costco pump #1 with 10.596 gallons
after going 406.4 miles, making for average fuel economy of 38.35 mpg
for this tank. The only real notable thing about this tank is that I
refueled at the Woodbridge Costco rather than the Fredericksburg Costco,
which sort of helps me to advance my "conspiracy theory" that the
Woodbridge pumps shut off earlier than the Fredericksburg pumps.

However, if this theory is true, that would mean that my fuel economy
was actually worse than advertised for this tank, as I would have gotten
relatively more gasoline had I used the Fredericksburg pumps. Alas, I
shall never know for sure. If I refuel again in Fredericksburg and my
mileage is revealed to be 35 or 36, this helps confirm my suspicions.
Or it confirms that I just drove like a maniac because I knew my mileage
would be low anyway.

But overall the averages should work out in the long run.

The sticker on my car said highway economy would be 35 mpg (I think), so
I consistently beat that.

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