Gasoline and diesel engines are very different. The former rely on spark ignition while the latter use compression ignition. Diesel engines typically run at much higher compression ratios than ...

How hydrogen combustion engines work, versus gasoline engines. Hydrogen combustion engines can be more efficient and with better emissions versus gas engines, due to the fuel differences of H2. This ...

Almost all gasoline engines, whether they're efficient-yet-less-refined four-cylinders, high-horsepower V6s, or growly and torque-rich V8s, use much the same process to create power. The "Otto cycle" ...

The RAV4 may have gone all-hybrid in America, but it’s a different story in other parts of the world. The US RAV4 lineup is now hybrid or plug-in hybrid only, unlike elsewhere. The Middle East gets a ...

Officials with UK-based power systems developer Rolls-Royce said the company is launching a new modular solution for gas engine power plants. The group on February 10 said the engines are designed to ...

The new Jeep Grand Cherokee covers a lot of ground, literally and figuratively, from under $40K to a supercar-bred engine and ...

The Ford F-150 is by far one of the most popular pickup trucks of all time, but even that hasn't stopped Ford from putting some stinker engines in them.

One of the Volkswagen Group’s most widely used engines is at the center of a new class action lawsuit in the United States.

It was destined that Louie would be passionate about cars before it became a conscious choice. And once it did, there was nothing else on his mind. With a childhood automotive brain like a database, ...

Replacing four-cylinder engines with inline-sixes, debuting a new family of V-8s, downplaying plug-in hybrids, adding more AMGs with high-performance electric motors, and mid-size SUVs with combustion ...

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 ...