Does anyone know about the 2 different sump gaskets that are packaged with the 594101 sump kit. The shape of the gaskets are identical but one is a thinner black paper, the other white thicker paper with a brown rubbery seal on the inner edge. My engine had the black gasket and that seems like it is the one I should use. But if the white gasket is an improved gasket and is okay to use…should I use that one? Anybody know about this?? Spit