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

Discover how professional racing engine diagnostics reveal hidden problems in your car. Expert insights from Miami's advanced auto repair specialists.

Engine cylinders can misfire due to problems with the ignition system, the fuel system, air and compression, or sensors and ...

I live in New Jersey, one of the states that mandates inspection for all vehicles newer than 1995. My daily driver, a Jeep Cherokee, happens to be a 1996 model year with an OBD-II sensor, meaning I ...

The National Highway Traffic Safety Administration issued multiple recalls for vehicles last week, including notices for over 140,000 Hyundai vehicles. Are you looking to see if recalls have been ...

Waymo will test self-driving cars on streets and highways in the Sacramento region. The DMV approved testing, but Waymo can’t carry passengers without another permit. Expert says Sacramento’s mix of ...

While announcing that Cars.com’s Accu-Trade used-car appraisal tool surpassed 1 million quarterly appraisals, CEO Alex Vetter said Accu-Trade and the Cars.com digital wholesale auction platform, ...

Teradar raises $150 million for terahertz-vision sensor Sensor offers lidar resolution, radar robustness, cheaper bumper-mounted chip Teradar partners with five major automakers for sensor development ...

Matt Carey, the co-founder and CEO of Boston-based startup Teradar, loves when people tell him: “I don’t believe you.” That’s “right where we want folks,” he recently told TechCrunch. Carey has spent ...

Teradar has developed an industry-first: a sensor that provides long range, high resolution, "all-weather" vision. Terahertz vision is a new category of sensing poised to replace radar and lidar as ...

Modern vehicles are equipped with advanced diagnostic systems designed to alert drivers to potential issues before they become serious problems. For Mitsubishi owners, understanding these diagnostics ...

While cars are designed to get us from point A to point B, we have our preferences in how we get there and the experience we like to have behind the wheel. We asked our readers earlier this week what ...