Okay, well, I had put this as one big jumble, but I figured if I broke it up into chunks, those who know more about one thing will be able to give input about something specific to each thread.
To start are the most important details: I have a 2002 WRX, No performance mods, had since Apr/May of '06 with 64,000 miles and I now have approx. 70,500 on the clock.
About a week ago I was driving and I smelled burning oil. Not good, obviously. I was about a mile from home so I eased her home and checked out the carnage. What I found was a turbo that seemed pretty pasted in oil on the outside, predominately (sp?) on the right side, again if you're looking from the front of the engine bay. I checked out the uppipe and it didn't seem to be leaking from that way, I tried the trick with the water bottle with soap and water and saw no bubbles. I looked for smoke out of the tail pipe and found nothing, several times over the past week. The only info I have is that I would get that screeching under heavy boost that people described as a downpipe/uppipe gasket leak. I've had the car since April/May and for the longest time thought it was just the intake or turbo or something, until about July when I read that it's most likely a problem. I didn't get it fixed because I thought it was just something that affected performance instead of the health of the car and I was so effin broke. I'm hitting myself on the head now because I didn't find a way to get on top of it. Anyhow, could that have something to do with the oil? What else could it be? How bad of a shape am I in? It's misfiring pretty bad, or at least what I think is misfiring. I haven't hardly driven it, just to class a few times, and I always stay under boost. But I am very concerned, and need to get it fixed ASAP....even though I can't seem to find anyone here who does work on turbos under my extended warranty. I guess another question I have is if that could be what's causing my terrible idle, and HUGE shake and rattle whenever I cut off the car, even after letting it cool down. My gas mileage, even without boosting, is awful. I've used over a quarter a tank in about a week of driving a total of maybe 40 miles or so.
Thanks for any help!