This oil sample was taken from my friend's 2003 Chrysler PT Cruiser. Time on this oil was exactly 3 months. The car runs like new and is well taken care of. It is driven on a 50 mile hwy/freeway round trip seven days a week. The manual suggests 6000 miles under these conditions, which seems to be an accurate recommendation judging by the TBN. I just couldn't convince him to go further. 5w30 is the recommended viscosity. From what I can tell, wear is amazingly low. All comments are welcome!