Quote:
Originally Posted by SailinAway
How come my MPG always says 31 mph, no matter what speed or distance I drive? Are you supposed to reset that each time you fill up? I thought the MPG was supposed to adjust itself while you're driving so you can change your speed accordingly. Chevy Sonic.
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It probably stays 31 because you've got so many miles and tanks through that the average isn't going to change.
If you want an accurate measure, you should be resetting that at every fill-up AND calculating it against your regular trip computer vs. gallons used.
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