No. K20 series will top out at 40 mpg if you drive at 60 mph and are really really careful, but most normal people doing 70-80 mph will see around 25 mpg. The K24 in the Accord sport will do just under this due to being a slightly larger lump (albeit with longer gear ratio's). Most K series will average around 28-30 mog, and do around 25 mpg in town driving.
I'm unsure if the Accord Sport came with an auto option, but someone in work had a tourer 2.4 petrol Accord and he struggled getting 30 out of it. Thirsty beasts.
So its really quite economical around town but very poor on the Motorway?
How come? 25mpg around town from a 2.4 litre Accord sounds excellent.