Honda changed their oil spec from 2001 to 2002 I believe, without changing anything on many of their motors. Example, j32a1, j32a2, j30, j35,k23, Nothing changed motor wise, but oil spec changed from 5w30 to to 5w20. They did it for fuel conservation. They did introduce the K24 in 2003. I believe it was spec'd for 5w20. You have a K24. I owned an accord with the k24 and did not realize the oil spec change. I was living in So,Cal Hot weather and used mobil 1 10w30 and change oil once a year. no problems. Would do it again no problem. I would feel comfortable using either ow30/5w30.