Mine took a couple of sessions to get dialed in. I just followed the manual, filled up at the same pump and made slight adjustments to the ScanGuage each fill-up. Now it seems to be pretty close most of the time.125inA30zone said:wow. im getting about 230 average with all city. but i may use a lil too much throttle some times.... i have a scanguage, but it doesn't seem to want to calibrate correctly. any tips/help?