For more than a decade, automatic engine start/stop systems were sold as painless climate tech, a clever way to trim fuel use ...

We all love internal combustion. It gets us where we’re going and does it efficiently, too. At least it does nowadays. But internal combustion wasn’t always this way. Before there was direct injection ...

An automatic start-stop system in vehicles is known by many names: Some call it a "stop-start," others "S&S," and others a "micro-hybrid technology." But whatever you call it, it's a common feature in ...

Heavy-duty pickups and long-haul trucks rely on torquey diesel engines that are more economical, reliable, durable, and have a more straightforward construction than a comparable unleaded gas engine.

Today's catalysts for removing unburnt methane from natural-gas engine exhaust are either inefficient at low, start-up temperatures or break down at higher operating temperatures. A new single-atom ...

When a American-made reusable aircraft broke the hypersonic barrier for the first time in nearly 60-years this past December, it was not one of the aerospace industry’s prime engine makers, but a ...