I sold a city 2005 at 222111 km after driving it for 10 years on Honda exact pack (their 10W30 3.7L oil) with drain interval always of 5000 km and original gear oil. Sold to a colleague so it was not throwing it off. He is very happy with the purchase and it is still going great!
Recently, however, I did the engine of a friend's car (same model City), the drained gear oil was hardly 1L and the new (Honda MTF 1L=Rs.1,000) was put around 1.6L before the level check bolt started draining.
Internet/shops suggest that the maximum gear oil this model can have is 2L. So this is what you would expect, i.e., to put in 1.5L or so.