Car and truck makers see hydrogen internal combustion engines as a tool to attack carbon emissions and leverage much of the industry's existing technology, expertise and supply chain. But California's ...

Subaru boxer engines don't require any special maintenance outside of the spark plugs potentially needing to be changed more ...

We may receive a commission on purchases made from links. Diesel engines, like all internal combustion engine types, require a mixture of fuel and air to flow through the intake system to operate.

Automotive engineers have invested countless billions trying to improve upon the humble internal combustion engine, but not all those efforts have translated well. In fact, sometimes, things got weird ...