Hi. My wife has a 2005 NON-turbo Legacy. She came home the other night complaining it lacked power when she pulled out to pass.
I immediately checked the oil (among other things) and found that (much to my embarrassment) the oil was just barely touching the stick -- but it was nearing the time for an oil change, so I didn't think a lot about it. Especially because I could see no extra oil on the car anywhere (including the engine), nor on the ground. Still, I thought it curious because at 133,000 miles it's has always gone all the way between oil changes without using hardly a drop. I thought "maybe a dirty PCV valve?".
So I put some oil in, and told her not to worry about it just now. HOWEVER, it looks like things are not so simple. I didn't have enough to fill the dipstick to full up, but did have enough to get it to about half way between the low and full dots on the dipstick. She came home Friday after driving the car about 60 total miles and the oil was just below touching the dipstick at all. I.e., she lost all that oil in one commute.
There is no smoke from the exhaust -- which is why I initially thought of a PCV value. But that seems like a LOT of oil for just a PCV valve problem? Anyone here with a lot of engine repair knowledge on Subies who could suggest what this could be? I'm starting to worry that it may have a cracked piston ring or other serious internal trauma.
Any insight, greatly appreciated.