I have an 87' 325 and the other day the overhead oil level light went on. Since I needed an oil change anyway I changed the oil and filter. Before I even changed it thought I noticed that I had somewhat of a leak . I stuck newspapers under the car to see where/how much was leaking. After about 15 min I noticed a drop or two of engine oil. Now that I have changed the engine oil i have driven approx. 50 to 70 miles and I haven't seen any leaking!! Whats up with that??