Oil pan silicone

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Replace those isolators on the bolts too. They get hard and compressed, and you'll lose the torque on the gasket. New ones are often near 1/4" thicker than old ones.

 

Is the supplied gasket cork or rubber?
I have found that when applying rtv to a rubber gasket, I often need to remove the mold release agent to get the rtv to stay put.

 

Nope. The black is a new style isolator for the black oil pan gasket, the old one is for a grey oil pan gasket.

Unless you're changing the oil pan to the new style

BTW, You do realize you're missing the spacer on the gray one?

 

Hey, sorry,I had that backwards. Your old one is black which means you have the new style pan with black gasket. The grey isolator will not work.

I don't think you can get just the isolator for the new style, just the new bolt with isolator