Occasional Oil Pressure Light for 2-3 seconds in my 318. Should I panic?

Install a mechanical oil pressure gauge and see what the oil pressure really is.

As said above, a tee fitting so you can install a mechanical pressure gauge is the best way to go.
Once you can verify the actual oil pressure you can go to the next step if necessary.
After verifying proper oil qty. I’d plumb in a manual gauge to verify. If it’s verified to be actual pressure drop, I’d be contacting the installer.
I would immediatly install a mechanical gauge so you can see what is actually going on.
Best bet is to put on a good temporary mechanical gauge and see what is really going on.
Check the oil pressure with a manual gauge or if you wish, replace the sender and see what happens.

Seems to be a common theme here :thumbsup: -- guess it's time to get a mechanical oil pressure gauge.