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I have 2017 kia niro EX at 30K miles.
I got it used at ~29K miles.

I drive the same way, same route everyday .
15+15 miles morning-evening drive to commute,
highway trip on I-66 north VA.

overall average is ~44MPG shown on computer, incredible if you ask me!
but, trip-A, about 100miles, shows ~23MPG.

how this can be possible?
how reliable is the mpg shown on the computer? lifetime or after refuel?
what you think?
Do you idle your car to warm it up? Do you accelerate really fast?

Edit: just thought of another scenario. If you drive really slow in the cold it will use a lot of gas too. When it's cold and I have the heat on (wife in the car) I will drive faster to save gas. Especially when the route is all EV range (I have the PHEV).
 

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Do you idle your car to warm it up? > No.
Do you accelerate really fast? > sometimes, rarely.


I have Niro 2017 EX EV. (not plug-in)
I donot trust what computer shows.
I just re-fueled to check myself, but there is another problem with the tank volume;
according to Kia it has a 11.9 gallon (45liter) tank, (2017 kia niro EX)

I saw 35 miles left to fill on the screen.
This tells me that I still had ~1 gallon remaining (assuming mpg is at least 35).
then, I filled, but it only got 9.3gal.
so, my calculation shows = 9.3+1=10.3gal.

what is the difference then?
11.9-10.3 = 1.6gal?

do I miss something here?
 

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Range remaining is highly inaccurate. Actual topped off capacity is 12.7 gallons and I've been negative 70 remaining miles (doesn't actually display below zero, but I use one of the trip meters to keep track). If you don't top off, your total range will be closer to displayed range, but there will still be a reserve.
 
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