OK, still searching for an answer - have a lot of suggestions, but still problem is unresolved. My 47 Series 62 is losing oil. It doesn't seem to drip, and doesn't blow smoke. However, I noticed that when I start the car, black soot comes out of the exhuast. In fact, after backing the car out of the garage, I stopped to check the oil. When I restarted, there was a streak of black on my grass just below the exhuast. The engine was rebuilt around 2500 miles ago. I've had it checked by our local mechanics and they can't find any major leaks. So, where do you think the oil is going? I've traveled about 150 miles since then, and I'm down a quart. Any ideas?