Fuel Economy

California and more than a dozen states on Tuesday filed suit against the EPA over administrator Scott Pruitt's proposal to roll back Obama-era greenhouse gas standards that include new car fuel-economy standards. The suit, filed by California's attorney general in the U.S. Circuit Court of Appeals...Read More»

A new turbodiesel V-6 gives the rear-wheel drive 2018 Ford F-150 Power Stroke Diesel fuel economy akin to a mid-size sedan, but the four-wheel drive version is much thirstier. Ford said Thursday that the EPA rates the rear-wheel-drive diesel pickup at: 22 mpg city, 30 highway, 25 combined. The...Read More»

Touting lower greenhouse gas emissions and higher fuel economy, Detroit's automakers want the U.S. to boost its octane. GM, Ford, and FCA are working with the U.S. Council for Automotive Research on a plan to switch from the three octane choices at most pumps to just one: 91 octane. Such a move...Read More»

The Trump administration’s EPA took a final step toward rolling back Obama-era fuel-efficiency regulations in the U.S. EPA chief Scott Pruitt singled out the Obama administration’s push for more stringent emissions and fuel-economy rules in a statement the agency released Monday...Read More»

The 2018 Hyundai Kona's outlandish styling isn't the only thing likely to grab buyers' attention when it goes on sale in the next few months. The EPA rates front-wheel-drive versions of the quirky, pint-size crossover at 30 mpg combined, but there's a big fuel-economy hit for the Kona's optional...Read More»

Rudolf the Red Nosed Reindeer may be perfectly suited to guiding sleighs in inclement weather, but if you played Santa: The Home Game this year, the chances are the little guy took some of the edge off of your fuel economy. That’s according to GM, which tested a GMC Terrain in a wind tunnel...Read More»

China’s Vehicle Technology Service Center has announced a large-scale stop-sale of various gas guzzling cars, including some that are effective January 1st. The move is part of the Chinese government’s ongoing efforts to curb pollution and promote electric vehicles. All told, carmakers...Read More»

The all-new 2018 Jeep Wrangler may still have boxy styling that flashes back to World War II, but its fuel economy will improve substantially. Roadshow dug up the 2018 Wrangler's fuel economy figures, which were posted to the EPA's website. The figures released for the Wrangler with a 3.6-liter V-6...Read More»

Back in March, Donald Trump authorized a review of current U.S. emissions regulations. Those regulations cover vehicles through the 2025 model year and were hastily finalized by the Environmental Protection Agency in the days leading up to Trump's inauguration. The review alarmed environmental...Read More»

Editor's note: An earlier version of this story misstated a position by the Alliance of Automobile Manufacturers, which is a lobbyist for automakers. The AAM supports increased fuel economy regulations, but added that the changes should be agreed upon after a mid-term review of the regulations...Read More»

In March, U.S. president Donald Trump authorized a review of a controversial decision made by the Environmental Protection Agency during the final days of the Obama administration. The decision tightened emissions regulations for U.S. automobiles through model year 2025. Environmental groups have...Read More»

The past century has brought an onslaught of innovation. Don't believe it? Try to imagine modern life without television, the internet, microwaves, or social media. But despite those and other technological advances, one thing hasn't changed too much: the distance that cars can travel on one gallon...Read More»

Just before Donald Trump was sworn into office, the Environmental Protection Agency did something a little unusual. It finalized emissions rules for U.S. vehicles through the 2025 model-year, and it did so much faster than expected. Now, 18 car companies are asking Trump and his team to review and...Read More»

Gas may be less than two bucks a gallon right now, but that doesn't mean that automakers aren't working hard to make cars use less fuel. Through 2025, U.S. fuel-economy regulations get increasing stiffer, requiring automakers to get to a fleet-wide average above 40 mpg combined on the window...Read More»

No doubt about it: 2016 has been the Year of WTF. The latest proof comes in the form of an announcement from the Environmental Protection Agency that it plans to maintain its current auto emissions goals for 2025. That wasn't what most observers expected. Then again, there may be more to this than...Read More»

New presidents bring new advisors, new staff, and of course, a host of new policies and priorities. That's true even if the new guy and the old guy belong to the same political party; when they come from different parties, as Trump and Obama do, the changes can be much more dramatic. ALSO SEE: 2018...Read More»

There's been plenty of talk about the Environmental Protection Agency and its ambitious fuel economy goals for 2025. But those standards only apply to light-duty passenger cars, trucks, and SUVs: what about tractor trailers and other heavy-duty vehicles, which use billions of gallons of gasoline...Read More»

For the past month or so, the Environmental Protection Agency has been making headlines over its proposal to lower the fuel economy standards it had set for 2025. The EPA won't sign off on any changes to its plan until 2018, though, and in the meantime, at least one group is pushing it to...Read More»