5. Finish loosening the lug nuts and remove the flat tire. 6. Put the spare tire on. 7. Thread the nuts on and tighten just enough to hold the wheel on without slop. 8.

That's also the point where tires will flunk a state safety inspection—and where tread must be worn for you to collect on a tire's tread-wear warranty. Unfortunately, 2/32 of an inch may be too ...