A new GM patent outlines a way to track tire wear visually, potentially warning drivers before tread depth becomes a problem. GM patented a camera-based system to monitor tire wear, not just pressure.

Depending on how long you’ve been driving, tire pressure monitoring systems (TPMS) are either convenient or annoying. Don’t get us wrong – TPMS is a great idea on paper. Imagine being told your tire ...

One of the most important measurements we make while tuning an engine is finding out what the actual balance of air and fuel was inside the engine. It doesn’t matter if we have a carburetor, port ...

Welcome to Car and Driver's Testing Hub, where we zoom in on the test numbers. We've been pushing vehicles to their limits since 1956 to provide objective data to bolster our subjective impressions ...

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 ...

For heart rate testing, Horst used a Polar H10 chest strap as the benchmark. The Apple Watch Ultra 2, running watchOS 26 beta, delivered results that were nearly identical to the strap during indoor ...

In a surprise Thursday announcement, Apple says that it is bringing the blood oxygen sensor feature back to the Apple Watch Series 9 and newer. The returning feature will be part of an iOS 18.6.1 and ...

A redesigned blood oxygen measurement capability will arrive Thursday for Apple Watch models that lost access to the feature due to a patent dispute. Apple found a workaround that involves the Apple ...

We earn commissions from purchases you make using links in our articles. Learn more. If your car experiences poor fuel economy, lacks power, feels sluggish, idles rough, or has an illuminated check ...

L3Harris Technologies Integrated Mission Systems president Jon Rambeau and ELT Group CEO and COO Domitilla Benigni take part in the signing. Credit: © L3Harris ...

Dissolved oxygen (DO) is the measure of oxygen gas that is physically dissolved in water. It is a critical parameter for aquatic environments because it supports the respiration of fish, invertebrates ...