[dsraven]

in general, before I found the right stuff and had to use the best high temp RTV I could find, I wouldn't add oil or run the engine, etc, until the RTV had sat overnight so it could get a good cure time without any oil present. pretty tough to do that at in a commercial environment so I would end up only using RTV if a real gasket wasn't available and even then only use it sparingly in corners etc. a light film of aviation form a gasket is what I used to "glue" the gasket onto one surface and I wouldn't let the RTV contact the silicone because that never seems to work out. I know lots of commercial places use RTV for gaskets and say they have no problems. diff covers etc. but I can say I have repaired lots of those "no problems" because the customer doesn't go back for another potential leak and waste of their time.