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

Besides preventing the build-up of nasty engine sludge and premature wear, protection against cold starts is one of the main reasons why you should never skip an oil change in your gasoline or diesel ...

It may seem obvious, but fill the engine's crankcase with the right amount of oil, usually four to five quarts, and make sure the filter is full of oil. If you've purchased an assembled motor, check ...

Volvo Trucks has introduced a new generation of its I-Roll technology. The upgrades adds new engine stop/start functionality. Volvo said the technology is a world first in the heavy-duty truck ...

“EPA approved it, and everyone hates it, so we’re fixing it,” says Lee Zeldin. It’s unclear what “fixing” means here. Engine start / stop systems can already give you better fuel economy, as explained ...

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 ...