Hello everyone. I'm dealing with the rear seat pad of my 98 civic sedan DX. Before I bought it, somehow someone managed to spill some sort of engine oil under the pad. Iv recently pressure washed it with degreaser but it still seems to have a little in it. Does anyone have a method or should I just go for a used one in the wrecking yard if I can find it? Was going to buy a shop vacuum and some blue coral to see if that improves it.