A lot of local shops don't use it because then the parts don't come apart again.
My theory is, it shouldn't HAVE to come apart unless it leaks, in which case you should keep it from leaking, yeah?
Right Stuff is my Red Hot. I put that E36 M3 on everything. Besides sealing oil pans, front covers, transmission cases, and diff housings, I use it as exhaust flange sealant (manifold as well as pipe flanges) and housing sealant on rotaries. (They say it can't stand up to combustion heat but they's lyin') I've stuck broken plastic shift knobs back together with it. I've used it to seal wiring harness pass-throughs. Hell, I even made raised hood bumpers with it so I could run with the rear of my hood an inch or two up for cooling purposes.
The only thing I DON'T use it for is seam sealer, because you can get real seam sealer for like 1/5th the cost and it works just as well. The only exception is when you're slapping a patch of metal over a hole quick-like. Then out comes the Right Stuff. That way you don't need to weld it on.
I did search for this, and there are some oblique references to the sealant, but the full answer has come up that I can find.
The car is a 1998 Toyota Camry-XLE, 6 cylinder (1MZ-FE) engine with about 178,000 miles. The valve cover gaskets are leaking enough that it's time to replace them. The gaskets are molded rubber that sit in a channel in the head and the valve cover. There are lots of twists and turns in this cover though. I have read online everything from you should always use a sealant, to you should never use sealant, and pretty much everything in between. But what 99% of these never include is the reasons why.
So, should I use a sealant for this gasket change? If so:
Thanks in advance for any help with this!