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Old 01-31-2008, 06:43 PM   #5 (permalink)
Renaissance Man
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Join Date: Jan 2008
Location: In the Northeast dreaming of the Southwest
Posts: 596

Aegean C - '17 Honda Civic LX
90 day: 39.25 mpg (US)
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Originally Posted by Lazarus View Post
Welcome to the site

You have to tweak the scan gauge to the car. When you fill up there is a screen that lets you change the amount that the scan gauge calcuated and what you actually used. If you fine tune it this way with large fillups it should be right on. I did two 10 gallon fills on a 12 gallon tank and mine is with in .1 every time. If you have done this and it's still reading differnt everytime then I think you have a problem with the SG.
Wow, I never thought of that. I always look at that screen and just hit "done", it never occured to me to try correcting it. Thanks for the tip.

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