How pessimistic is the Mi/kWh display on the dash?

[GoHawks]

Something new I noticed on my commute today - differing displays and calculations for mi/kWh. I do not use the GOM for anything and usually do the math when driving long distances. I have noticed using my ODBII device the dash display is generally pessimistic on what it shows once I do the calculation post trip. I attributed it to rounding but why do different screens in the truck show different results? Has anyone else done a deeper dive into specifics on this using data for measurements? If so, please provide results. That extra ~.1 or .15 mi/kHw might help change charging locations when traveling.

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[TaxmanHog]

This has always been an issue

 

[JRT]

If you are traveling relatively flat interstate at 70 mph with no head wind, j use 2 m/kwh always. After just under 15k miles I never have seen a miracle change like others post.

 

[Jseis]

This subject gives comic relief given the five hashtag marks gauging fuel tank volume many of us grew up with. I drove 52 miles with my Bug on “R” one dark eve when all stations were closed. To this day I’ve no idea of volume but I definitely used all of “ R”.

 

[Pioneer74]

It's been like this since the beginning. Nobody knows why, except that math is hard.

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