My b17 in my 92 Teg GSR burned about ~.5 per change... my current Del Sol Si doesn't burn a drop, it's amazing.
but I've heard that Preludes are pretty well known for oil consumption, and that it's fairly normal - a friend with a 92 VTEC goes through a quart every ~3K, like clockwork, he doesn't worry at all, and his engine bay is as clean as the board of health - no leaks. I wouldn't worry too much.