Gas Mileage

Jeep got its start with the U.S. Army more than 70 years ago, and the brand has huge global recognition. Now we've driven the first Jeep designed to sell in greater volume outside the U.S. than at home, the 2015 Jeep Renegade. DON'T MISS: 2015 Jeep Renegade - full review It's a subcompact Jeep...

Bosch eClucth substitutes a normal hydraulic clutch for an electric one.

Most car buyers don't think a lot about transmissions. In the U.S., more than 9 out of 10 of them opt for an automatic, and that's that. But transmission technology turns out to be one of the major ways automakers are boosting gas mileage to meet tougher fuel-economy rules. And it appears GM is...

A research firm claims the 2015 Ford F-150 has the lowest lifetime emissions of any full-size truck.

More surveyed owners listed fuel economy as their highest priority than anything else.

It's downright confusing trying to calculate how much it costs to run green cars, whether it's a 50-mpg Toyota Prius or a highly efficient electric car like the 124-MPGe BMW i3. One of the problems is how to use different efficiency ratings for various powertrains--gasoline, hybrid, electric--to...

Johnson Controls claims its new start-stop system can improve fuel economy up to 8 percent.

A Ford executive says there are better ways than aluminum bodywork to improve car fuel efficiency.

If you’re looking for a small hatchback that delivers both fuel economy and flexibility, only a handful of new cars come to mind. Add in top safety ratings, and your list may narrow down to just one car: the latest 2015 Honda Fit. To Honda’s credit, the latest Fit looks less like a...

President Barack Obama encourages Americans to buy more-efficient cars despite low gas prices.

A video explaining the meaning of MPGe.

Ford applies for a trademark on the "EcoBeast" name, and obvious offshoot of its efficient EcoBoost line.

The 2015 Mitsubishi Mirage earned four- and five-star ratings in government crash tests.

The 2015 Chrysler 200 mid-size sedan is a good-looking, comfortable, and modern entry in a very competitive segment of the car market. Part of the Fiat-led product renaissance at Chrysler, it replaces the grim, dated previous 200 derived from the old Sebring and largely relegated to car-rental...

It's December 31, when we like to look back to see which stories were our most popular over the entire year. Boy, did we get some surprises this year! Not a single electric-car story cracked the top five, despite the huge traffic we get on plug-in cars in general and particularly many of our Tesla...

We published roughly 1,800 stories on Green Car Reports this year, covering everything from fuel economy (it's rising) to electric cars (there are more on sale than ever). Every news site strives for 100-percent accuracy, but very few reach that mark. That's why there are Retractions sections in...

Gas prices have fallen 40 percent in a year. Sales of SUVs and crossover utility vehicles are up, while hybrid sales are flat or falling. And a midterm review is coming up, giving auto companies a chance to argue that the corporate average fuel economy rules that stretch out to 2025 need to be...

Ford's CEO says the company is on track to meet U.S. fuel-economy standards.

Volvo will add a three-cylinder engine to its Drive-E series.

Chrysler is reportedly looking to increase the efficiency of its Pentastar V-6 engine.