hello all...have a 98 legacy outback limited with 187,000 miles. 
  
2.5 engine with new head gaskets, new radiator, new fluids, new timing belt, 
new thermostat.  started smoking (white smoke) from under hood , about 15 minutes after start up. Cleared up just as fast. Looked under hood....no coolant leaks, temp gauge is normal , found power steering fluid all over top of block. Could this fluid cause pufs of white smoke for short periods? 
  
Any thoughts all you subby guys and girls? 
  
Much thanx