I recently replaced the oil pan gasket and valve cover gasket as both were defective. The valve cover was leaking from the rear, as others have stated with theirs and the oil pan was leaking from the rear as well. I first thought it was the main seal, but with the 2.5l, that's a big job, so after removing the oil pan I checked the gasket and was able to see exactly where the leak was coming from. I replaced oil pan gasket with a felpro 1 piece, but I made sure that the pan was very, very clean were the new gasket sits. I scrapped and then sanded it down nice and smooth. No more oil leaks.