Nissan plans to introduce a new type of hybrid for the U.S. market that drives like an all-electric vehicle but is powered by ...

Power companies need to reduce their carbon emissions, and this new gas engine promises to help them do so by running on a ...

As two of America's traditional 'big three' automakers, Ford and GM have a rivalry steeped in history. They've each offered similar types of products that fulfill the same purpose for buyers, be they ...

Original analysis by The Washington Post quantifies the pain at the pump. Look up your car model.

At TopSpeed, William Clavey is Editor-at-Large, where he focuses on authority and exclusive content, reviews, news articles, features, and opinion pieces all while sharing his passion for everything ...

Cummins engines have long been synonymous with diesel power, but for the first time in its 100-year history, the company has introduced a gasoline-powered engine. The B6.7 Octane is the company's ...

Add Yahoo as a preferred source to see more of our stories on Google. Green pump for diesel, blue for gas – but what's the difference? Jeffrey Greenberg/Education Images/Universal Images Group via ...

If you've even casually contemplated purchasing a Ram truck powered by a diesel engine in the last couple of decades, the name Cummins is undoubtedly familiar to you. The Indiana-based company has, ...