So before I get yelled at for not searching, I did, a lot... and I couldn't find exactly what I need.
My question is do I need to drain the oil to pull the oil pressure sensor? I'm putting in a T-fitting and would prefer it if I didn't have several quarts of oil drain onto my face. I've seen guys suggest that the oil should be sitting in the pan and not be up that high, which makes some sense I suppose, but I have no idea if it's true or not. So...any ideas? I'd rather not drain my oil and put it back in 10min later when it wasn't even in the way to begin with. Thanks

 

Don't need to drain the oil, let it sit for a few minutes to drain down into the pan then you're good to go.

 

That's service right there! Thanks! Saved me a lot of extra work

 

And just to clarify for anyone else out there, mturnbull50's info was spot on. I was putting in a T-fitting for the old oil pressure sensor and a new one for a new oil pressure gauge. It's a little tight down there, but it fit!