If you build engines, tune cars, or even just like mashing your foot on the throttle with conviction, you’ve probably heard ...

Knowing a few precise mechanic terms can turn a confusing estimate into a clear conversation and keep you from paying for ...

Exhaust systems are designed to survive years of heat, vibration, and road grime, yet some of their most important parts deteriorate so gradually that drivers rarely notice until performance or safety ...

Can you remove an O2 sensor with a standard wrench? Learn when you need a special socket, what's in a kit, and how thread ...

In winter, it’s important to ventilate living and working spaces regularly. Here’s how to make a homemade measuring station ...

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

Illustration of Muon Space's environmental monitoring satellite. WASHINGTON — Muon Space has secured a $1.9 million contract to develop an infrared sensing payload for missile detection and tracking, ...

Samsung is working on a new camera sensor, and once it finds its way into a next-gen Galaxy S-series device, it could help alleviate some of the brand’s problems with shutter speed. As reported by ...

Toyota regained the top spot in Consumer Reports’ list of the most reliable car brands in 2025. The company has often topped CR’s chart. But last year, it fell to second behind Subaru FUJHY. This year ...