Valves are among the most complex components in the internal combustion engine. Many cars nowadays incorporate multiple ...

Ultra low sulfur diesel is necessary to both reduce sulfur environmental emissions and to enable newer emission control ...

While you can technically put hybrid motor oil in a standard ICE car and vice versa, brands sell specially formulated oils for hybrid cars for a good reason.

Five-cylinder engines aren't common, but they were once valid alternatives to four- and six-cylinder engines. Here's what ...

It's one of the most underrated performance engines ever made - and it found its way into some surprisingly mainstream cars.

The diesel engine may have fallen out of favor, but some manufacturers aren't letting go of it. We're about to see some impressive new diesels in 2027.

The valveless pulsejet engine is one of the simplest known engines, consisting of just a hollow pipe with no moving parts.

New experiments show that turbocharger-induced exhaust backpressure costs large port-fuel-injected hydrogen engines several ...

In flight tests, a lean-burn engine cut soot about a thousandfold, but tinier exhaust particles that can seed contrails ...