What is the best way to seal that little camshaft cover on the back of the 2.8?

In 2008, while replacing the clutch, I replaced the rear main, and cam cover seals. I added a light smear of RTV to both sides of the cover gasket.

In 2012 (with the help of someone who thought that 3rd gear was 1st) I had to replace the clutch again. At that time, the cam cover was seeping. I cleaned the area really well, bought a new gasket from GM, installed it with no RTV ths time. Now it's leaking again. What do you guys suggest, RTV and no gasket?

I use this stuff on paper gaskets



Also make sure the cover is flat. It can distort over time or if it's over tightened.

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1986 SE Aero coupe.

3.4 DOHC swap is complete and running, now just have to finish the rest of the car...

I just did mine also a couple weeks ago.. Haven't run the engine yet though. Victor reinz gasket is a cork that i used and then I added an 8th in bead of rtv to both sides. I then assembled the cover onto the block but only lightly snugged.. Once the RTV (high heat) dried over the course of an hour or two, I then torqued it to spec. We'll see how well it does.. The time before (the engine builder used a sealant but was the consistancy of thread locker.. It leaked all over the place.. Didn't know what they were thinking at the time.

I cleaned and resealed my entire engine. Over the past 15 Yeats as a professional tech. The only sealant I use is called the Right Stuff. The stuff seals like none other. Just make sure and wear so.e latex gloves. Its about impossible to get off your hands...lol..hope this helps!!!

Thanks for the tips. It's going to be a few weeks before we can pull the trans to fix this. Hopefully my new clutch isn't oil soaked.