Every car engine has quite a few details, ranging from cylinder count to compression ratios. How does changing the compression ratio affect the engine?

Despite its critics and moves toward electrification, the internal combustion engine is not yet dead. Though its design for passenger vehicles may have begun to reach its apex with Mazda’s Skyactiv ...

29 November 2006 — Yesterday at POWER-GEN, GE Energy announced a new Jenbacher J420 GS gas engine addition to its Type 4 engine family that is ideal for 60 Hz applications running at 1,800 rpm to ...

LEEDS, Alabama—Just how efficient can a fully loaded Class 8 tractor-trailer be? Shell sought to answer that question when designing its Starship 3.0, a Class 8 concept equipped with readily available ...

Horse Powertrain's H12 Concept hybrid engine delivers 44.2% thermal efficiency running on 100% renewable gas, cutting fuel use 40% in existing vehicles.

After graduating with an MBA, Jared pursued his love of cars by becoming an automotive journalist. An internship with CarBuzz grew into his current position as Editor At Large. Jared now flies around ...

Daimler Truck North America (DTNA) is expanding its powertrain lineup for the upcoming 2027 model-year trucks, adding a new ...

Freightliner and Western Star models will offer a broader mix of gasoline, diesel and natural gas engines designed to meet EPA 2027 emissions standards.

We’re reading the tea leaves in Ram’s new 2025 truck lineup, and it goes way beyond what you already know about the new Dodge Charger. There’s been some negative hype about the disappearance of V-8 ...

Publicity photo of a first-generation Union Pacific GTEL locomotive and a circa-1923 electric auto in Fremont, Neb. The auto was owned by a local woman and the locomotive was on its way west to haul ...