Oily substance dripping from frame on passenger side (see pics)

I have a 2015 Tacoma and recently noticed several drops of “oily” substance dripping from the frame on the passenger side. It’s been happening for a couple of weeks, there is an 2-3 inch diameter leak almost daily. Any ideas what it might be?

 

Have you've been running the AC? The water could be collecting dirt/oil from the frame.
Give it a good wipe down and look on top of the frame to see if there's any wetness.

 

A/C condensate as above.

 

Water from the AC mixed with what ever is sprayed on the truck frame.
Some kind of rust preventative it looks like.

 

If its stripping paint could be brake fluid.