Which gasket is failing? There are four, the gasket between the housing and the block, the large O-ring and the two small o-rings on the pipe. Are the nuts coming loose when it fails?

It shouldn't cause a leak but the two o-rings on the pipe should be replaced and the hollow internal passage inside the pipe must be open, look for two very small holes on the sides of the pipe.

I'd use a Mahle, Hengst, Knecht, Mahle, MBZ or Wix filter.

I'd and have used the oil you chose but preferred Chevron Delo and Shell Rotella T. Just be sure whatever oil you use meets the MBZ spec.

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