Hybrids promise great efficiency without the high cost or range anxiety of EVs. Not all of them live up to this promise, but ...

There’s no doubt that EVs and hybrids can deliver better fuel economy than traditional gas-powered vehicles. But that ...

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 ...

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 ...

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

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 ...

(TestMiles) – Gas prices are climbing again with the national average sitting at $3.842 per gallon as spring break ramps up ...

Gas, electric, it doesn't matter. The key metric here is energy spent per mile traveled, which we can determine for any means of propulsion.

This Modest Engine Has A Fuel Saving Secret Weapon ...

Lower used EV prices and higher fuel costs are shifting the equation for drivers.

Gasoline and diesel engines are very different. The former rely on spark ignition while the latter use compression ignition. Diesel engines typically run at much higher compression ratios than ...

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 ...