Why the B-21 Raider’s exhaust differs from the B-2: new stealth design cuts infrared signature and boosts survivability.

I installed Microsoft's free PC Manager tool to see if a single click could actually make a difference on a sluggish computer.

HOT ROD readers are well acquainted with all the cool stuff involved with working on high-performance machines, but that also means that you must face having to clean nasty, greasy parts. That’s ...

The future of clean construction equipment power is still evolving. Alternative propulsion for machines like excavators and dozers, which have utilized diesel engines for about 100 years, has centered ...

Researchers at the Federal University of Technology in Owerri, Nigeria, have identified a promising strategy for cutting diesel engine pollution without hurting performance. After reviewing studies ...

Scientists are exploring a surprisingly simple way to clean up diesel engines: adding tiny droplets of water to the fuel. During combustion, the water rapidly vaporizes, triggering micro-explosions ...

A fast-rising name in the hybrid vehicle market, Horse Powertrain has spent the past three years transitioning into one of the world's leading engine manufacturers while developing a portfolio of ...

After more than six decades of cleaning up messes, Mr. Clean is "retiring." In a Thursday, Feb. 18 news conference, Mr. Clean announced that he was "hanging up his whites" and taking some much-needed ...

Shares of Caterpillar, the maker of mining and construction machinery, are up more than 30% since year-end, making it the biggest contributor to the Dow Jones Industrial Average. WSJ’s Jonathan Weil ...

With less regulatory pressure, engines don’t have to get cleaner or more efficient, yet GM CEO Mary Barra insists the company will keep pushing them in that direction anyway. She maintains that GM ...