Courtney took the mighty Corolla on a trip over the weekend. It really messed up my mileage calculations and days between tanks averages. She filled 5.073 gallons and reset "A" odometer and presumably left "B" odometer to keep rolling. I filled up totally this morning with 6.196 gallons. But, her tally of miles gone when she filled with 5.073 gallons, when added to the 108.8 miles on odometer "A", does not total the 438.1 miles that were on odometer "B" that presumably she didn't touch!
So we're looking at either 38.30 MPG or 38.88 MPG, depending on what odometer reading is right.
This is what I get for letting someone else drive my car.
118 tanks, and three of them are now messed up and miscalculated because one of my wives decides to save a few pennies per gallon and only fill up half way!
It's going to take weeks for me to get this statistical anomaly out of my system.
But an odd discovery is that, either way you measure, I have traveled about 150 fewer miles in the first 19 tanks of 2007 than I did during the same number of tanks in 2006. And at a cheaper cost, too! But I expect gas will be more this summer, as I payed about 27 cents more per gallon than at the same time last year.
Still, the gas prices have not apparently caused many drivers to actually change their driving habits. They say you can increase your fuel economy 10% just by driving more sanely. I can't get much better than 38 MG, but I will keep trying all summer.
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