Hello. On myhyundai.com my 3 eco rewards are accurately displayed, but the mpg is listed as 15mpg, whereas the car records 30mpg (City Buffalo) and actually measures 30mpg. I have emailed the site and they said they would look into it but no result. Gil

 

Mine has said that I have averaged 13.XX mpg for the last month on my Sonata. The worse month I have had is 24.xx average calculated and 23.xx displayed. Looks like a data collection or software proble.