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post #68 of (permalink) Old 15th September 2006
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I take the computer readings only as an approximate guide. Although when comparing the readings I get and calculating the old fashioned way as per your previous post the mpg is usually within +/- 1mpg of the computer. Sometimes high sometimes low.

Also, as the computer calculate ave mpg, the more miles you do between a reset the more accurate it becomes. Reseting after 100 miles will not be as accurate as letting it run for a whole tankful of over 550 miles.

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