My advice: Don't do it! In the old days when the valve cover gaskests were easy to reach there was room for experimentation, but I certainly wouldn't want to make a habit out of replacing the covers on the D! Buy the gaskets from DMC Houston or a Volvo dealer as an option. Also, there is a heck of a difference between replacing head gaskets and valve cover gaskets! (It would be interesting to know how to run an engine one minute after replacing a head gasket, as evidently the manufacturer claims. Or was that a typo?) Roger 1074 >>>> I was planning on replacing my rocker cover gaskets soon. But I had a > quick question first. Is instant gasket alright to use, or would it be more > advisable to purchase a set from DMC Houston and use factory original? The > stuff says that it can be used for head gaskets and that the engine can be > used within 1 minute of application. Ideas? > [Non-text portions of this message have been removed]