I agree that all oils should not be changed without sampling to verify its limitations. But the other extreme of ignoring the oil is idiotic.

For the record, assumption is the mother of all f*ckups. Be careful with the assumption the mechanics here are all "halfassed" if that was what you meant.

__________________
Satan creates nothing: he only ruins everything. He does not invent: he tampers. And his followers are no different ~ Archbishop Carlo Maria Vigaṇ