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

IndyCar is set to introduce new regulations for the 2028 season, which include a new chassis and aerodynamics.

Porsche switched to water cooling to meet stricter emissions and noise rules, handle more power and heat, improve efficiency, ...

Synthetic engine oil might seem like it carries some risks or downsides. However, you should consider switching to synthetic ...

There's nothing like getting inside a brand-new car — especially during the holiday season. Three Baltimore-area drivers got ...

During cold weather, your vehicle may require twice the amount of current than normal to get the engine to start.

Plans to ban the sale of new combustion engine cars in the European Union by 2035 have been thrown into turmoil after pressure from car manufacturers.

Regardless of your preferred way to do maintenance on your car, DIY or by a professional, there are a few good timesavers, ...

The European Union plans to ease its 2035 ban on petrol and diesel cars, allowing limited use of combustion engines under ...

RACER’S Marshall Pruett has spent the last year tracking developments with the IndyCar Series’ new chassis, engine, and the ...

Yes, in most cases you should replace your car's serpentine belt when replacing the alternator. It's just much simpler to do ...

The 2026 season will see huge changes to what Formula One cars look like, how they operate, and ultimately, how races might ...