I have an 2004 XC70 with just almost 30,000 mi and on occasions it leaks oil from under the engine anywhere along the distance between the wheels. My take is the drip is accumulating on the undercarraige cover and when we stop or exit the garage, it runs out. I have not had lost enough to add oil to the engine but it shouldnt be happening. Before I take it into warranty repair, any idea what is going on? Thanks to everyone on this mystery.