Im swapping out my engine for a 3.4 in about 3-4 months. My 2.5 has about 80k on it and so far doesn't have anything wrong with it. Ide imagine in about 3-4 months it would have 82k on it, possibly 83. I bought it at 50k and since I have changed the oil every 3-4k miles with mobil 1. Im trying to get 3500 for it. I can have it inspected once I rip it out to make sure everything is in working order. Im not driving it right now because I have damage to the front bumper and im saving up to fix it. I start the car and let it run about ten min. every 3 days. If anyone wants to plan ahead just let me know.