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

Gas can get expensive, and there are many tips on how to maximize a tank of gas while paying as little as possible. But how true are these tips?

Ford’s 1.0-liter engine is under investigation for a fault that could quietly destroy engines without warning, potentially ...

To date, the NHTSA has received a total of 44 complaints that allege low engine oil pressure that ultimately leads to a ...

The compression ratio clarification wasn’t the only one issued by the FIA. For some time now, F1 has used ultrasonic fuel ...

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