Thats okay, the search string is probably not right or something. The 28mpg is a simple calculation as you can see.
I think Honda has understated the mileage on purpose. 11.90 is a figure that most people are EXCEEDING in USA (in city driving). But over here in Pakistan, due to the quality of the fuel, very few people within city driving exceed the 10 mark. Not by any honest calculation anyway lol
Time to buy a scangauge folks