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Improved (!) gas mileage after 4 years

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Hey gang - I made an interesting observation today; when I first bought my '06 530i 4 years ago it would consistently get 19.2 mpg according to the computer in the instrument panel. I typically don't reset this figure for a few months.

A few weeks ago I was cycling through the menu options and the reading was 20.8! So I reset it, drove normally and today - about a month later - it reads 20.8 again. That's a 1.6 mpg improvement over 4 years, pretty cool.

I drive the exact same route to work every day with an occasional tour around Pasadena on the weekends - we drive the family car otherwise so this car sees the same drive almost every day.

We love our 530 so much that we got an X3 last weekend.