Hello,
Would like to revisit this, as I'm still confused.
On new GM cars, it's probably the same on all of them I would imagine, when it gives a computed fuel efficiency in mpg on the dashboard display, is it:
a computation that is updated every minute, or so ?
or, an overall average from the time you pressed the Reset Arrow button. This can be a very long time average, for a long trip, of course, if the Reset is pressed at the start of the trip.
Two very different approaches, obviously
Can't tell from watching it change. Manual doesn't explain.
Which method do you think they use ?
Thanks, Bob