Here are 2025's most popular questions and answers from The Journal's Car Doctor column, from rotating tires to oil changes.

Cylinder misfires can turn a smooth commute into a rough, fuel‑wasting slog, and they almost always leave a trail of ...

TPMS diagnostics tips help shops solve signal loss, relearn failures, and sensor issues while building customer trust.

Winter quietly raises the stakes for every smoke detector in your home, just as you spend more time indoors with heaters ...