this made sound weird but, about a year ago I have major oils leak at the valve cover ( I dint know how to change the valve cover that time, so I take to my mechanic ) I went to autozone and bought fel-pro gasket, take it to my mechanic, it wont fix, i take it back and went to advance auto part and bought fel-pro, it still not fix, the hole for the bolt is not line up correctly, napa, oreilly, they all not fix, so he told me go to the dealer, the one from the dealer is fix perfect, but the one from the dealer is only came with the gasket for the valve cover, but not for the bolt.