Hi, I have a 96 Si (H23). About two days ago I started the car up and noticed a rattling noise. Its only when the car starts and under any sort of acceleration above about 2,500. My oil was a bit low and I put about 3/4 of a qt. in. It seems as if its coming from the top of the engine. I had valves adjusted only 5,000 miles ago, and the oil changed about 2,000. It seems to be a a noise that is some what inconsistent, no rythm like injector or valve lash problems. Any idea?