Now that you remind me, every 3 to 4,000 miles I was losing a quart of oil. I thought I had a serious problem. The service director told me that Cadillac believed that this loss of oil was acceptable. Now I check my oil more frequently. I don't think I'll look at the new STS for a year or two. I don't believe in buying the first year's production of a car. Look at the first CTS's. They threw rods and had to have the engines replaced. Cadillac covered them under warranty and found the problem, but I would have been disappointed.