Good suggestion on the computer.
I have had a chance to put a few tanks of gas through a couple of Canadian market Nissan Micras, which are built in the same factory, on the same chassis, and use the same 1.6L hr16de engine as US market Versas.
I saw a discrepancy of 4.5% (optimistic) when I checked the accuracy of the factory MPG gauge.
I'm driving a 2015 Nissan Micra for a week... observations & fuel economy results
https://ecomodder.com/forum/showthre...uel-29461.html
Review: driving a $9998 2015 Nissan Micra (Nissan's most efficient manual in Can/US.)
https://ecomodder.com/forum/showthre...ost-32097.html