LOL, I put those valve cover gaskets on 2 years ago....(also new valve covers ,really nice ones) and drove to Corpus...lost 2 qts oil! even with those...found out that my new covers had been casted and they did grind down the 'tits' inside and created walloped out areas where those nice gaskets couldnt seal because of being so rigid...had to buy another gasket and silicone to the others to 'fill the gap'....so it wasnt the gaskets fault , but by being so good they leaked! lol...the valve covers look like this , but I should have checked the inside better before installing.