3. it's an estimation on many factors calculated by the
ecu, it will never be actual, so take all those results with a grain of salt. This isn't new it's always been like that, how can it know actual usage on many parameters and injector times and inbuilt allowances like actual tyre circumference, actual distance driven...it can't is all. My folks 2015 MD Titanium looks to average 8.2-9.2L/100km or less when HWY driving is included. Empty vehicle, one to two people usually. On the HWY it goes well he's had it down to 6.1-6.6L/100km, it's flat driving 80 to 100kph. City can reach 9.5L/100kms and up.