You keep it long enough you'll get a new engine! They know there isn't one of these cranks in spec. There wasn't a coincidental run that just happened to roll.off in spec. The oil viscosity change is only to help slow progression and prolong customer pain. That's how they have it planned to triage these turds.
I'm about to find out on the Tahoe. Switched to 0W40 just to see what happens. Will be interesting if the iron particles are better or worse.
