Quick Power Steering/fluid question

[69MyWay]

What kind of power steering fluid are you guys running?

I drained and flushed the 90 last night. What a mess! That stuff was brown and stinky. It was having trouble slipping and whinning after a spirited autocross run. It is equiped with the optional power steering air to air cooler.


Any thoughts on what works best, holds up to the most heat, and is good for higher mile units?

 

[Ls1smlblck]

STP, works good for daily drive use. But for racing or autocross not sure.....