I have owned a 2007 Forester NON Turbo for about a year now. It has 80K miles on it and is consuming just about a quart of 5W30 oil every 1,000 miles. So far, I have performed an engine flush and replaced the PCV valve and it is still consuming about the same amount of oil. I drive mostly on highway daily at about 75-80mph at about 3200 RPMs. To my understanding, these motors DO consume oil, but not at the rate I am experiencing. I am the second owner and I am guessing the previous owner didn't drive this vehicle daily. I have called the dealer to find out the process of elimination to oil consumption before having to rebuild the motor and I am now at the conclusion that it needs rebuilt. Is there something I am missing? I haven't heard of anyone having to do a rebuild this early without driving being rough on the motor. If I do have to rebuild or replace the motor, I have had thoughts of adding a turbo or swapping for the turbo EJ25 or maybe even the EJ255 STI. The reason I want a turbo is to be able to climb the mountains in Arizona without excessive abuse on my engine. Any and all suggestions would help and It'd be greatly appreciated. I do have a lot of mechanical background but this is my first Subaru and I would like to keep it for a long time. Thank you!