mpg

Automakers may gradually be putting more emphasis on plug-in electric cars and conventional hybrids, but they are far from done with plain old internal combustion. Over the past few years, automakers have applied more technology to a wider array of cars in order to boost their efficiency to meet...

If you follow our coverage on fuel efficiency, you know that real-world mileage numbers don't always measure up to the official EPA ratings. But if you think failing to meet those EPA numbers by five or ten percent is already a letdown, be very careful about your cargo-carrying expectations in your...

The EPA hopes to tighten standards for fuel-economy testing.

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...

At its most fuel efficient, the 2015 Ford Mustang is rated at 26 mpg combined.

The first-generation Honda Insight hybrid, sold from 2000 through 2006, is renowned even today for its ultra-high gas mileage: 52 mpg combined (48 mpg city, 58 mpg highway). Those ratings remain unmatched today by anything today that doesn't include a plug and a large battery pack. So why, 15 years...

The trend of increasing average fuel economy continues.

U.S. mass transit usage continues to grow, while car usage remains stagnant.

New emissions standards will reduce the amount of sulfur in gasoline to 10 ppm.

Buffalo, New York has the cheapest used diesel cars in the United States, according to a new study.

A startup with an improved design hopes to broaden the appeal of these gas-mileage aids.

The 2014 Jeep Cherokee returns significantly better fuel economy than the Liberty it replaces.

The EPA is expanding its used car gas-mileage label tool. It now allows sellers to create a graphic for online ads.

The Nissan Versa is one of the largest "subcompacts" on the market. For 2014, a new hatchback model called the Versa Note joins the all-new sedan launched last year. We spent several hundred miles with a prototype 2014 Versa Note over three days of this past weekend, and came away relatively...

Ford spent nine months justifying the 47-mpg fuel-efficiency rating of its new 2013 C-Max Hybrid--before it bowed to public pressure and lowered it to 43 mpg late Thursday. While its three latest hybrid models continue to sell well, the latest reversal draws attention to Ford's challenges when the...

The new 2014 Chevrolet Impala is a big five-passenger family sedan, the largest one Chevy sells. While it was launched earlier this year with a 303-horsepower 3.6-liter V-6 engine, it can now also be ordered with a 196-hp, 2.5-liter four-cylinder Ecotec engine that produces 186 lb-ft of torque...

With two dozen hybrid models now on the market, and several mass-market plug-in hybrids as well, weighing costs and benefits can get a lot more complicated. Take, for instance, our reader Catherine Chan-Smith, who wrote to ask for advice: I've read your article on the 2014 Honda Accord Plug-In...

The 54.5 mpg Corporate Average Fuel Economy (CAFE) standards set for 2025 have caused much wailing and gnashing of teeth from some quarters, but automakers haven't been among them. The automakers have been quite supportive in fact--perhaps knowing all along what a new analysis has discovered: That...

This is starting to look not so good. It appears that two new hybrid cars from Ford--the 2013 C-Max Hybrid hatchback and the 2013 Fusion Hybrid sedan--may not deliver real-world gas mileage that's anywhere near their 47-mpg EPA ratings. Automotive journalists have been quietly discussing this for a...

How much do you spend on gasoline each year? If you happen to live in the average U.S. household, the total is more than $2,850 every year--roughly $240 a month, or $60 each week. So when the Consumer Federation of America surveyed 1,000 U.S. adults in May on their attitudes toward fuel efficiency...