We tested popular wideband O₂ controllers against lab-grade equipment to see how accurate their lambda readings really are under real engine conditions.

This video covers a complete oil change and oil level sensor replacement on the BMW E39 M5. We go through the service process ...

Photoshop CC 2017 tutorial showing how to create a blue sky with feathery clouds from scratch and use it to replace a burnt-out sky in a photo. Get 15% off BORIS FX OPTICS! - The BEST special effects ...

The Costco advantage doesn't just extend to your favorite grocery items and low-priced Interstate batteries. The warehouse retail chain also offers wholesale prices for tires, and they're a fantastic ...

Whether you’re working in the front of the shop or turning wrenches in the bays, part of TPMS service is teaching customers what they don’t know about their vehicles. Many drivers may believe TPMS ...

Apple released a small build update to iOS 26 developer beta 6, which does not re-enable the blood oxygen sensor on Apple Watch in spite of the earlier iOS 18.6.1 update that did. The new iOS 26 ...

If you’ve had your eye on a new Apple Watch Series 10, now’s the day to finally get one. Not only is it $100 off, starting at just $299 for the 42mm model, but the blood-oxygen sensor is finally ...

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 ...

Jake Peterson is Lifehacker’s Senior Technology Editor. He has a BFA in Film & TV from NYU, where he specialized in writing. Jake has been helping people with their technology professionally since ...