New Duralast oil pressure switch caused oil leak

[pmoore4321]

I started leaking oil and traced it to a bad Duralast PS118 oil pressure switch. The switch was brand new and weeping oil out the top through one of the terminals. I could blow into the port and oil would seep out of the black plastic around the terminal. Just FYI in case you can't locate an oil leak. Pull the 3-terminal plug and see if there is oil inside.

I re-installed the 25 year old sensor and no leaks.