Hello, 
  
It's my first post here, so bear with me. 
  
I just bought an '05 Subaru Outback XT with the 2.5L turbo.  I do not know what type of oil the previous owner used, so I want to start my own routine.  It has 19,000 miles on it.  Which type of oil (brand, wieght, synthetic?) should I go with?  I know this probably will start of a holy war, but I just wanted to get more opinions. 
  
My gut feeling is to run Mobil 1.  How often does this need to be changed? 
  
Any input is greatly appreciated. 
  
--Lone Ranger