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

Do modern cars need an engine break-in period? Automakers like BMW, Ford, Chevrolet, and Subaru say yes, but recommendations ...

We here at GM Authority get a lot of questions from owners asking about about the recent L87 GM engine recall, one of the most common of which is what happens when an affected vehicle passes GM’s ...

One of the very first elements any automotive designer must consider is where to locate the engine. Whether it's a typical ...

Car engines can present countless issues throughout your vehicle's lifespan, and some brands are known for internal problems more than others. If there's an issue with your engine, chances are a ...

It's one of those questions you've probably never thought to ask, but the second you hear it, it's stuck in your head. Automakers have produced cars with three, four, five, six, eight, 10, 12, and 16 ...

The unique demands of car racing have spurred various developments in automobile manufacturing. Whether in Formula 1, Le Mans ...