Which 0W20 Oil Brand?

Lbear said:

Very common due to heat/cold thermal cycles. Bolts do the same thing.

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I don't know about rubber gaskets, but I do know about mechanical interfaces. AAC got into a pickle over their replacement suppressor mount designs, as they torqued down two 45-ish degree surfaces against each other, which can require about 25% more torque than initial, to remove. This coupled with carbon/copper welding led to a bunch of stuck cans in testing. I've long accepted that you will need a bit more beans off than you used on, regardless of interface. Taper surfaces are worse (and I presume gaskets and compressible interfaces are similar).