Most Efficient Source of Fuel May Be Tiniest Organism January 28, 2020 6:08 PM By Shelley Schlender; Jeff Muhs, of Utah State University's Energy Laboratory in Logan, Utah, sits next to a tank of ...

Efficiency is their main party trick, though, and there are plenty of options guaranteed to save you money. Compared to their gas-only siblings, hybrids are much lighter on fuel in most cases.

To help SUV shoppers looking for the most fuel-efficient SUVs, we compiled the most efficient models for the 2021 model year in four categories: gas-only, hybrid, plug-in hybrid and battery-electric.

The Jeep Wrangler Unlimited isn't the most fuel-efficient SUV ever released, ... but other sources report the diesel SUV of achieving a fuel economy between 32.1 mpg and 60.1 mpg.

Fleet fuel experts in diesel, battery-electric, and hydrogen fuel cells make their cases for trucking’s future primary source of power. Even as diesel trucks become more efficient, climate ...

Top 3 Most Fuel-Efficient Cars Without a Plug Not everybody can install a plug in their homes, has access to public plugs, or wants to plug their cars in at all. That’s what regular hybrids are for.

In one case, the researchers uncovered an 87 percent difference in fuel efficiency between Southwest, the most efficient carrier, and Delta, the least, on the Chicago-New York route.

Source: International Council on Clean Transportation. ... America’s most fuel-efficient major airline, Alaska Airlines, is 26 percent more fuel efficient than Allegiant, ...