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 ...

Short of haggling for the best possible deal at a dealership, one of the best ways to save money is by choosing a very fuel-efficient vehicle. What makes this even better than any one-time savings is ...

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

Ah, the old diesel vs. gas debate. Each type of engine has its fans and supporters, with arguments supporting both. And there are all kinds of things to consider when trying to choose between the two, ...

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.

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 ...