Oil Leaking from this - What is it?

[HSKR R/T]

Wow, that's shocking how loose it got. I guess the wires not being disconnected isn't an issue if it got looser over time (wires would be in the same location since install). Unless it was installed too loose to begin with?

Assuming standard clockwise thread?

Yes, lefty loosey, righty tighty

 

[SD Rebel]

Yes, lefty loosey, righty tighty

My lazy self will just stick a wrench in there and give it a bit of a snug. Tightening plastic scares me.

In the meantime, I should take a look at mine.

 

[HSKR R/T]

My lazy self will just stick a wrench in there and give it a bit of a snug. Tightening plastic scares me.

In the meantime, I should take a look at mine.

Only plastic is the connector. The sensor and the Hex area where you put wrench are metal

 

[SD Rebel]

Only plastic is the connector. The sensor and the Hex area where you put wrench are metal

On a side note, after double checking, it looks like that particular switch is for the engine oil temp.