My normal routes take me in and around Sheffield and I average 38mpg, which I was ok with given that I came from a Civic Type-R and taking into account the accord is a large car. However I was away on a stag weekend this last weekend and going from Sheffield to South Croydon via the m1, m25, m23 I returned 56 MPG. Now there is roadworks a lot of the way so you are stuck at 50 but for the rest of the time I was either stop start on the m25 or I wasn't hanging about. Quite impressed. As a side note I drove down in one sitting and my word, it's a comfy place to be. In the r I would have stopped to get out of the seat for a stretch. In the accord I could honestly say, I could have driven a lot further.