fuelefficiency

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  • Bay bridge of San Francisco, USA

    Ford, BMW and others sign binding emissions agreement with California

    by 
    Kris Holt
    Kris Holt
    08.18.2020

    They've committed to building cars that outperform federal fuel efficiency standards.

  • Grafissimo via Getty Images

    19 states vow to sue over proposed fuel efficiency rollbacks

    by 
    Mallory Locklear
    Mallory Locklear
    08.03.2018

    Yesterday, the Trump administration unveiled its plan to roll back fuel efficiency standards and soon thereafter, multiple states vowed to fight the move in court. Nineteen states and Washington, DC announced they would sue to prevent the changes from being put into place, Reuters reports. "The Trump administration has launched a brazen attack, no matter how it is cloaked, on our nation's clean car standards," California Attorney General Xavier Becerra said following the publication of the proposed plan. "CA DOJ will use every legal tool at its disposal to defend today's national standards and reaffirm the facts and science behind them."

  • Getty Images

    Even automakers don’t want Trump’s emissions rollback

    by 
    Roberto Baldwin
    Roberto Baldwin
    08.03.2018

    The Trump administration unveiled its proposal to weaken Obama-era fuel efficiency standards, and it's as bad as you would expect.

  • Getty

    Trump administration reveals plans to roll back vehicle fuel standards

    by 
    Mallory Locklear
    Mallory Locklear
    08.02.2018

    Earlier this year, the Environmental Protection Agency (EPA) announced that it wanted to roll back vehicle efficiency standards put into place by the Obama administration, and today the Trump administration revealed its plan to do so. While the previous policies stated that automakers have until 2025 to get their average fuel efficiencies for passenger vehicles to over 50 miles per gallon, the Trump administration rules would freeze standards after 2021 and average fuel efficiency requirements would then remain around 37 miles per gallon. Further, the plan aims to revoke a waiver that allows California to set its own vehicle efficiency standards.

  • Patrick T. Fallon/Bloomberg via Getty Images

    NHTSA proposal would override California's tougher emissions rules

    by 
    Jon Fingas
    Jon Fingas
    04.28.2018

    The Trump administration hasn't been shy about wanting to roll back emissions and fuel economy guidelines, but there's been a key obstacle to that: California. It has a waiver permitting it to apply tougher emissions standards, and that (combined with support from 12 other states) effectively dictates the rules for automakers across the US. Officials may soon force California to honor looser federal standards, however. The Wall Street Journal has learned of an NHTSA proposal that would not only freeze increases on fuel emissions standards between 2020 and 2026, but would include "scenarios" that would let it override or even eliminate California's authority to maintain its own increases.

  • AOL, Roberto Baldwin

    Court blocks Trump's delay of fuel efficiency penalties

    by 
    Jon Fingas
    Jon Fingas
    04.23.2018

    The Trump administration's efforts to undo car efficiency guidelines just hit a major obstacle. A federal court has blocked a White House attempt to delay the implementation of a rule toughening penalties for automakers that don't meet national fuel efficiency standards. The measure (which was supposed to take effect in July 2017) raises the penalty rate by $8.50 for every tenth of a mile per gallon beyond the minimum fuel standard. The hope, unsurprisingly, was to encourage brands to hit Corporate Average Fuel Economy (CAFE) targets through 2025, reducing CO2 emissions and saving drivers money.

  • AFP/Getty Images

    Trump reportedly seeks massive budget cuts to clean energy research

    by 
    Mallory Locklear
    Mallory Locklear
    01.31.2018

    The Trump administration has made it very clear that it is pro fossil fuels and has little interest in pushing programs the promote renewable energy. Now, the Washington Post reports that the president's proposed 2019 budget slashes funds for Energy Department programs focused on energy efficiency. While the proposal is just a jumping off point, the fact that it seeks to cut such funding by 72 percent underscores where the administration's interests lie and in which direction its policies will continue to go.

  • Qilai Shen/Bloomberg via Getty Images

    China halts production of 553 car models over fuel efficiency

    by 
    Jon Fingas
    Jon Fingas
    12.31.2017

    The new year is proving to be a headache for some car makers in China. As of January 1st, the country has suspended production of 553 car models that didn't meet its fuel efficiency standards. Some of these come from partnerships with foreign heavyweights, including Beijing Benz Automotive, Chery and FAW-Volkswagen. It's not certain how soon those companies might restart production lines, although that likely involves finding powertrains that meet fuel consumption targets.

  • AOL, Roberto Baldwin

    Car makers ask US officials to loosen fuel economy requirements

    by 
    Jon Fingas
    Jon Fingas
    10.07.2017

    It's no secret that automakers believe the US' recently-instituted fuel efficiency requirements are too stringent, but now they've made those views official. The Alliance of Automobile Manufacturers, which includes companies like GM, Toyota and VW, has made official comments to both the EPA and NHTSA asking the regulators to loosen Obama-era rules intended to raise a fleet's average fuel economy to 51.4MPG by 2025. They don't object to the targets as such -- rather, they don't like the projected costs of reaching those targets.

  • Daniel Acker/Bloomberg via Getty Images

    Car makers ask Trump to revisit fuel efficiency rules

    by 
    Jon Fingas
    Jon Fingas
    02.12.2017

    Car companies operating in the US are required to meet stringent fuel efficiency standards (a fleet average of 54.5MPG) through 2025, but they're hoping to loosen things now that President Trump is in town. Leaders from Fiat Chrysler, Ford, GM, Honda, Hyundai, Nissan, Toyota and VW have sent a letter to Trump asking him to rethink the Obama administration's choice to lock in efficiency guidelines for the next several years. The car makers want to revisit the midterm review for the 2025 commitment in hopes of loosening the demands. They claim that the tougher requirements raise costs, don't match public buying habits and will supposedly put "as many a million" jobs up in the air.

  • Infiniti's latest engine is a last hurrah for gas-powered cars

    by 
    Jon Fingas
    Jon Fingas
    08.14.2016

    Hybrid and pure electric cars may be the future of transportation, but Nissan's Infiniti badge has found a way to make the most out of gas engines while they're still relevant. When the next-generation QX50 crossover arrives in 2017, it'll carry the first-ever production variable compression turbo (VC-T) engine -- a technology that promises to dramatically improve fuel efficiency without compromising on performance. By automatically adjusting the height the engine's pistons reach, the VC-T motor can optimize its compression ratio for the task at hand. It'll lower the ratio if you're mashing the throttle (to prevent premature detonation and make the most of the turbo), but raise it when you're putting around town and need to wring out better mileage.

  • GMC's latest SUV travels farther thanks to glue

    by 
    Jon Fingas
    Jon Fingas
    08.14.2016

    Usually, squeaking significant extra mileage out of a vehicle involves some very conspicuous changes. You can switch to a new engine, go hybrid (or full electric), or build components out of lightweight materials like carbon fiber. GM, however, is trying something different with the just-launched 2017 GMC Acadia: glue. Rather than join the SUV's underbody components using rivets or welds, GM is using aircraft-grade adhesives along the seams to create a body so stiff that the company can afford to use thinner steel. The result is an Acadia that's a whopping 700 pounds lighter than its predecessor, giving it 23 miles per gallon (versus the 2016 model's 18) without having to resort to more drastic changes.

  • VW reportedly knew its fuel economy figures were wrong a year ago

    by 
    Jon Fingas
    Jon Fingas
    11.29.2015

    If one report is accurate, Volkswagen execs didn't just know that their cars' emission estimates were fishy -- they knew the fuel efficiency figures were off, too. German newspaper Bild claims that top brass was aware of misleading fuel economy estimates about a year ago, or months before it became public. Former CEO Martin Winterkorn reportedly went so far as to yank one model off the market, the Polo TDI BlueMotion, because its fuel consumption was simply too far off the mark (18 percent above estimates).

  • Ford C-MAX Hybrid rated for 47MPG across the board, C-MAX Energi hits 85MPH in EV mode

    by 
    Jon Fingas
    Jon Fingas
    08.09.2012

    The wait for the Ford C-MAX Hybrid has been a long one, and we'll still be waiting until the fall before the driving public takes a set of keys. In the meantime, there's good news from the EPA for travelers wondering just how far that hybrid MPV will go on its combined power. It should be quite the distance: the now-confirmed fuel economy rating is an even 47MPG, whether it's for putting around the city or cruising the highway. Ford is more than eager to crow about the figures giving its $25,995 ride an edge over Toyota, whose slightly more expensive Prius V peaks at 44MPG on highway stretches and dips to 40MPG in urban areas. The early victory parade is continuing with the C-MAX Energi, too -- the plug-in hybrid variant can peak at a brisk 85MPH in pure EV driving, or more than 20MPH faster than either the regular Hybrid or a Prius plug-in. Toyota does have the slightly important advantage of having a vehicle on the market. Those who have yet to commit to a hybrid family hauler, though, will be glad to know their patience could earn them some extra efficiency or speed.

  • Inhabitat's Week in Green: worlds largest LEGO Christmas tree, turbine powered LEDs and a hydrogen fuel cell vehicle

    by 
    Inhabitat
    Inhabitat
    12.05.2011

    Each week our friends at Inhabitat recap the week's most interesting green developments and clean tech news for us -- it's the Week in Green. This week Inhabitat got into the spirit of the holiday season as we reported that a French firm wants to transform the Eiffel Tower into a gigantic tree, we brought you the world's largest LEGO Christmas tree, and we watched GE flip the switch on the new National Christmas Tree, which is decked out with high-tech LED lights. We also spotted a seriously sweet Star Wars AT-AT walker made entirely from gingerbread, and we shined the spotlight on the amazing life-size light-up ice palaces that rise each year at the Harbin snow festival in China.

  • Inhabitat's Week in Green: holiday gift guide, 155 MPH biofuel truck and a solar-powered buckyball

    by 
    Inhabitat
    Inhabitat
    11.27.2011

    Each week our friends at Inhabitat recap the week's most interesting green developments and clean tech news for us -- it's the Week in Green. This week Inhabitat got set for the holiday season as we officially launched our Green Gift Guide, which is chock full of 21 categories and over 300 presents - including a great set of DIY projects you can make yourself and a round-up of our favorite gifts for gadget geeks. Speaking of high-tech gizmos, we also showcased several amazing examples of cutting-edge robotics as researchers developed a new breed of disaster detecting cyborg insects and Otherlab created a line of lightweight inflatable robots that can walk on water. Scientists also successfully completed the first round of trials on a new type of contact lens that could one day send emails directly to your eyes, and NASA announced that the new Mars Curiosity Science Laboratory will be powered by nuclear energy instead of solar.

  • Edison2's Very Light Car is now very electric, too

    by 
    Amar Toor
    Amar Toor
    09.21.2011

    When we caught a glimpse of Edison2's Very Light Car earlier this year, we were told to expect an electric version of the X-Prize winning featherweight in the near future. Well, here it is. Known as the eVLC, this "supremely aerodynamic" concept car is powered by a 10-kWh battery pack and, believe it or not, can comfortably seat four passengers. The plug-in has yet to go through the EPA's official round of mileage testing, but Edison2 claims that the eVLC is far more fuel efficient than the Nissan Leaf and believes it could even receive the highest MPGe rating ever awarded. There's still no word on when this little critter could hit the market, but you can check out Autoblog Green's gallery (at the source link below) for a more extensive tour of what Edison2 calls the "inevitable future of the automobile."

  • Goodyear's self-inflating tires could improve gas mileage, leave Schrader valves unsatisfied

    by 
    Lydia Leavitt
    Lydia Leavitt
    08.13.2011

    Reminiscent of Ghostbuster's Marshmallow Man, new Goodyear tires might just Stay-Puft on their own. The company is developing Air Maintenance Technology (AMT) tires with built-in pumps to keep themselves at the perfect pressure. The reason? Even slightly under-inflated tires can drop your mileage by 3.3 percent, costing you cash at the pump. For highway-hustling commercial trucks that's a whole lot of moola, leading the US Department of Energy's Office of Vehicle Technology to grant Goodyear $1.5 million towards self-plumping commercial tire development. For those of us who don't wear mesh hats, Goodyear is working on a consumer version in its Luxembourg lab. It's unclear exactly how they will work, but earlier implementations have a pipe that's compressed as the tire rolls, allowing air to enter the tire without bursting thanks to a pressure sensitive valve. With so much automated car technology now all we need is the kind that cleans out its own trunk and pumps its own gas. Check out the full PR after the break.

  • UK students' 1,980 MPG car scores first place in marathon race, by a 1,000 MPG margin

    by 
    Donald Melanson
    Donald Melanson
    06.24.2011

    A car that looks like the one above and gets the "equivalent" of 1,980 miles to the gallon (and one gallon only) is certainly impressive enough on its own, but it's all the more so when you consider that it's driven by a 14-year-old and built by his classmates (with a little assistance, of course). This particular vehicle hails from Kingdown School in Wiltshire, England, and it won the recent Mallory Park Mileage Marathon by a margin of more than 1,000 MPG over its next closest competitor. Not surprisingly, however, the students are already looking to improve things for next years' race, and say they're planning on upgrading the engine for starters. No word if they're considering an X-Prize challenge after that.

  • Tesla Roadster 2.5 gets 119 MPGe rating from EPA, still as expensive as ever (updated)

    by 
    Amar Toor
    Amar Toor
    05.26.2011

    Move over, Nissan, because there's a new MPGe king in town. Yesterday, the EPA anointed Tesla scored its Roadster 2.5 with an MPGe rating of 119, which would make it the most fuel-efficient car on the market. That places the plug-in ahead of both the Nissan Leaf (99 MPGe) and Chevy Volt (93 MPGe). According to the government-approved mock-up window sticker, Tesla's EV can last for up to 245 miles on a single, eight-hour charge, while getting the equivalent of 112 miles per gallon on the highway and 124 in the city. The original Roadster, meanwhile, received an MPGe score of 111 yesterday, with ratings of 105 on the open road and 116 in the city. Both models scored a perfect 10 for their greenhouse gas and smog emissions, though those ratings probably didn't factor in all the cash you'd have to burn to actually buy one. Update: We just heard from the EPA, which clarified that this is not their official rating for the Roadster 2.5. These numbers are Tesla's, and the window sticker itself is a mockup - not a legitimate sticker from the EPA. Still, if you'd like to see it, it's down after the break.