It's too early to tell...this thing had so much grimy old oil all over the right side from the valve cover down to the drips on the ground and the suspension that I couldn't tell where it was coming from. I'm going back to the carwash in daylight to take another stab at cleaning off the old oil so I can get a better idea of the source of the leakage. I hope this isn't something that's going to cost a fortune...I'm trying this old luxury car thing, trying to avoid huge car payments on newer stuff, and with 2 teenagers driving, I need all the help I can get.