Studies show that the Prius has one of the lowest lifetime cost-per-mile figures of any vehicle sold in the U.S., but that doesn't mean it's maintenance-free.

Ignition coils last far longer than spark plugs and only need replacement when symptoms appear. Here’s how to tell if coils ...

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

Engine cylinders can misfire for many reasons. There are four causes in particular that you should be aware of; here's what ...