[sig_a]

Good advice to clean all evidence of oil from every area under the engine. Then drive the car until oil temp is normal. Park overnight where engine is over a piece of clean cardboard or something similar. Check the next morning to get an idea of how bad the leak is. First check the oil return tubes. It is very common for the seals to leak from above the valve cover and drip down to the lower cover seam. Extensive info on DIY r&r of oil return tubes at pelican search engine. I removed the complete exhaust/heat exchanger system for "easier" replacement of Weltmeister expandable oil return tubes. Fixed the problem and saved +/-$500.