First post after searching - this leak is definitely not RMS, back of the valve cover, pressure switch, or oil cap.
Just bought this 2001 with 125k miles, 4.0, automatic. Completely stock. Dealer replaced the heater core, a/c coil, and fan switch before we bought it. Everything else appears to work as intended.
The engine was steam cleaned and detailed and looked immaculate. No noticeable leaks when I looked under the front and rear bumpers. After the 20 mile drive home, I've got a leak!
It looks like an oil and water mix - not pure oil like is on the dipstick, not as thick or as strong-smelling as on the dipstick. The oil is all over the tie rods, steering damper, and lower frame bits (short arm?). There is no oil on the power steering box (not that far forward), none on the back of the engine, and none higher than the oil pan. It does not appear that the pan is leaking as the oil is on the frame lower than that. Dipstick does not appear to have water on it and coolant is clear and looks oil free.
There is some accumulation at the bottom of the radiator - is there an oil cooler? There are two small lines running toward the radiator, not heater tubing, I'm thinking oil cooler.
So, I'm hoping for some guidance on where to look or other common failures. I've got a dye kit on the way (for fun and teaching my daughter in any case) and will clean / inspect but would like to narrow down if possible.