[thstone]

As Geof3 says, look at the top of the engine. My power steering started sounding like it was low on fluid but I hadn't seen any drips or leaks under the car - that was because it had pooled on top of the motor and was slowly burning off from the heat.

The first thing to do is simply drain and refill. I use the CHF.

A UDP won't have any adverse effect on the cooling, power steering, or air conditioning performance on the street.