Lurchsum69

For the engines that hv excessive oil consumption, are the stealerships actually sending blocks out for cyl bore/hone or just slapping in new pistons and rings?

SMac770

The problem is the rings, and the fix is to replace the rings and the matching pistons. For a straight oil consumption issue, there's no need to be bothering with the cylinder. If your cylinder has issues requiring resurfacing, something more than basic oil ring clogging has gone on. Would be my take.