We are seeing quite a few posts on the subject of Honda economy (or lack of it) 
Obviously this depends on how the where the car is driven (e.g. extra-urban, around town, etc) and also whether it has a petrol, hybrid or diesel engine, E5 versus E10 petrol, manual or automatic gearbox.
 

Post up your MPG and vehicle details and see if there is a trend occurring or whether it is satisfactory

I have a CRV 2016 1.6 I-DTEC EX Manual Transmission. On local runs normally 35 - 38 mpg & on longer distances 45 - 55 mpg, although it does sometimes depend on where I purchase the B5 diesel ?

Mine is a 2008 1997cc AWD Manual Petrol Exec and on a work journey to Eastbourne last week I averaged 35-37 MPG The problem is we never know how accurate the Speedometer /Mileage Meter is on some cars but working on the fuel consumption I think thats about right without thrashing it and driving at a steady 60 mph where applicable due to heavy traffic and the inevitable Road Works on this route.

BAZZER RN 1 

Min is a 2016 1.6d ex manual. Mine seems to average out at  47-48mpg with most of than on M roads. With the stupid 20mph in my local area it plummets to about 35mpg.