Help with scangauge II calibration
I have had a scangauge for about a year and a half and have never had it properly calibrated. On my 2006 hyundau elantra gt I have an average mpg gauge and a miles to empty gauge. But the numbers on my dash and the numbers on my SG have never been the same. my car is a 2.0L/14.5gal/gas. I have the SG set to 2.0l/14gal/gas. My calibration percentage has gone from -12% - +12%. All I have been using my SG for is a guide to get better mpg. I calculate every tank when I feel up and it never matches the SG and a lot of the time my dash either. So is there anything I should be doing different?
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2006 Hyundai Elantra GT 2.0L (Manual)
Weapon-R secret weapon intake with ram air kit ScanGauge Belly Pan
http://www.cars.com/ City 27 mpg - Highway 34 mpg
http://www.fueleconomy.gov/ City 23 mpg - Highway 31 mpg - Combined 26 mpg
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