Brim to brim fill and empty gives me the correct reading of 38>39 MPG while the cars calculator overall says its doing 33 MPG so KIA don’t do themselves any good having an underestimate.
I think the cars computer is set to US gallons because if you do the maths 33 to 38 works out about right but KIA says the computer is set for UK gallons but 1,000’s of KIA drivers says the same as me but unfortunate for me I can’t change the settings as you can only do that on the top of the range model and mine is top but one. ?