I just did an oil change in my 96 SLS, it was only 800 miles ago. So I'm out cruising on the freeway, and when I get into town, the oil pressure light comes on when the engine is idling at a stop light. Soon, the "Stop Engine, low oil pressure" message shows up. I obey, let the Caddy sit for a few hours and check the oil. Almost a full quart low in 800 miles. Didn't see any oil leaked out on the parking lot either. I really hope it's not burning that much oil. Oh, it's got 96000 miles.