There's got to be a good explanation for why some of our cars burn oil and others don't. Does anyone know why exactly? I've been assuming that GM just silently fixed the ring problem in the middle of the 2001 production run. But is the actually the case? If it is the case, I would expect that most if not all of the cars that don't burn oil would be greater than this magical production date. So it occured to me that the members on this forum could convert their VINs to production dates and from that information, we could determine when this magical cut off date is. Or, maybe we might find that no such date exists, implying there could be another reason why some cars burn oil and others don't. I think either outcome would result in some useful information.
Or maybe someone on this forum (Frank?) already knows the real answers to this issue, or perhaps there's a flaw in my reasoning?
Or maybe someone on this forum (Frank?) already knows the real answers to this issue, or perhaps there's a flaw in my reasoning?