My 2014 V6 Accord with manual transmission gets me about 24mpg by the computer, closer to 23 if I use a calculator. Not bad not good.
My last 3 cars have all been Japanese V6's. My 2013 GS 350 got 23, my 2015 Camry V6 got 27, and the Accord I have now gets 24. I don't have any freeway driving...