EVIC Gas Mileage Accuracy
I was looking through the threads and couldn't find what i was looking for so I apologize if it is already out there in advance.
Regarding the EVIC gas mileage display, it does not seem to be very accurate. I would say mine is consistently showing 1.5-2 mpg better than what I calculate out from fill-up to fill-up. My EVIC shows around 19.6-20.4 mpg and I only calculate out to around 17.8-18.5. My gas mileage also seems to be higher for the first quarter of a tank, drop-off for about a half of a tank and then slowly climb again for the last quarter of a tank. My driving is pretty consistent with mix of high way and city driving and the same route everyday. Seems like a software thing to me because it will also sometimes default to the TPMS display when I hit the back button from the fuel economy screen rather than the main menu.
Has anyone else noticed this big of a discrepancy? Is this a computer glitch or to the 20 inch wheels play into accurate calculations as well?
2014 Grand Cherokee Limited 4x4 V6
Bright White Clear Coat w/ Morocco Black Interior
UConnect 8.4AN AM/FM/BT/Access/NAV
Luxury Group II, Trailer Tow Group IV
20-inch x 8-inch Aluminum Wheels