I've done some searching and there's a good number of posts regarding them MM here on the forum containing a wealth of information. I never knew until today that you could "peek" at the MM prior to it going off at a 15% OCI to see what sub codes have been flagged - going to check that out...
My 2012 CRV-LX is consistently accurate compared to calculations/fuelly reports, but it is always equal or 0.1km/litre more fuel use (approx 1 UK mpg less) than calculations. I do a combination of roughly equal city(suburb)/highway driving. The speedo also reports 2-3 kmph slower than GPS...
Pleased with the 1st fillup, trip computer says we were averaging 26.6 MPG with the actual clacualtion being at 26.0 MPG. This is much better than our 2110 that was always displaying 2/3 MPG more than actual!!!