Green Car Congress

JULY 18, 2022

The California Air Resources Board (CARB) has released the results of a multiyear study evaluating exhaust emissions from the use of California Reformulated Gasoline (CaRFG) that contains 15 volume percent ethanol (E15). The E10 fuels were blended together in four equal parts to create the final E10 fuel.

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Green Car Congress

OCTOBER 11, 2014

With alternative fuel vehicles now approaching 1% of new vehicle production, however, they are in fact beginning to have a “ measurable and meaningful impact ” on overall new vehicle fuel economy and CO 2 emissions. In the analysis, EPA uses overall fuel economy in mpg equivalent (mpge) and tailpipe CO 2 emission values.

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Fuel Economy EPA PHEV Economy 312

Green Car Congress

JANUARY 18, 2013

This website, jointly maintained by the US Department of Energy and the US Environmental Protection Agency (EPA), provides information such as official EPA “window label” fuel economy estimates for city, highway, and combined driving for all U.S.-legal legal light-duty vehicles from 1984 to present. Speed increase. 50 to 60 mph.

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Fuel Economy Economy Fuel MPH 326

Green Car Congress

FEBRUARY 23, 2020

Approximately 6 billion gallons of fuel are wasted in the US each year as vehicles wait at stop lights or sit in dense traffic with engines idling, according to US Department of Energy estimates.

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Light Fuel Vehicles 2018 359

Green Car Congress

JANUARY 5, 2015

Drive cycle fuel economy for PFI, CDC, and multi-mode RCCI operation. Among their findings were that multi-mode RCCI has the potential to offer greater than 15% fuel economy improvement over a 2009 gasoline PFI baseline over many light-duty driving cycles, despite the lack of complete drive cycle coverage for RCCI mode.

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Fuel Economy Economy Light Fuel 150

Green Car Congress

JUNE 23, 2014

At the US Department of Energy’s (DOE’s) Annual Merit Review meeting in Washington, DC last week, Michael Ruth from Cummins noted that the DOE program target for the project is a fuel economy (CAFE) target of 26 mpg (9.05 Earlier post.). l/100 km), and as such would not meet the GHG requirement of 28 mpg (8.4

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Fuel Economy Economy Gasoline Downsizing 357

Green Car Congress

OCTOBER 10, 2014

EPA released the latest edition of its annual report on trends in CO 2 emissions, fuel economy and powertrain technology for new personal vehicles in the US. Fuel economy has now increased in eight of the last nine years; average carbon dioxide emissions are also at a record low of 369 g/mile in model year 2013.

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Fuel Economy MPG Economy EPA 230

Green Car Congress

SEPTEMBER 7, 2017

A team at Carnegie Mellon University has found that engineering design modifications that compromise other performance attributes—specifically acceleration—offer a pathway to reduce the cost to automakers of compliance with fuel economy standards.

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Fuel Economy Economy Design Fuel 150

Green Car Congress

NOVEMBER 3, 2017

Time sequence of images in a Sandia National Laboratories project that shows the extinction of light caused by a soot cloud formed during the injection of a diesel spray. The liquid fuel spray is seen at the bottom of the images and appears dark because the light passing through the combustion vessel is scattered by the liquid droplets.

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Green Car Reports

AUGUST 9, 2018

In response to an EPA proposal to freeze emissions and fuel economy standards, California said it will not honor federal vehicle certifications if the proposal goes through.

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Fuel Economy EPA Economy California 102

Green Car Congress

JANUARY 8, 2016

spread between the fuel economy obtained with maximum and minimum rolling resistance tires. At the average 2015 price of regular gasoline, the obtained fuel-consumption extremes result in a $78 difference in the annual cost of gasoline per light-duty vehicle, Sivak said. with a median of 10.28 with a median of 10.28

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Fuel Economy Economy Fuel MPG 150

Green Car Congress

SEPTEMBER 27, 2017

An analysis by a team from the University of California, Davis, MIT and Yale suggests that households that buy a fuel-efficient vehicle tend to compensate for that purchase by buying a bigger, more powerful second vehicle. This unintended effect could erode goals of fuel economy standard policies by up to 60%.

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Fuel Economy Economy Buy Fuel 150

Green Car Congress

DECEMBER 8, 2015

Worldwide, the vehicle fleet is not making enough progress on fuel economy and is failing to reach global targets aimed at reducing CO 2 emissions, cutting oil consumption and improving energy efficiency according to a new report from the Global Fuel Economy Initiative (GFEI) ( earlier post ) released at the Paris COP21 Climate Summit.

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Fuel Economy Economy Climate Global 150

Green Car Congress

MARCH 6, 2013

Sivak found that while the vehicle fuel economy of the entire light-duty fleet improved by 40% (from 13 mpg US to 21.6 l/100km), because of the decrease in vehicle load, the occupant fuel economy only improved by 17% (from 24.8 Combining these two effects yields a reduction of about 14% in the amount of fuel used.

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Fuel Economy Economy Fuel North America 311

Green Car Congress

FEBRUARY 20, 2015

Building on research that shows average fuel economy has improved 4.5 The analysis shows that fuel economy improvements are present throughout the distributions of vehicle fuel economy. The analysis shows that fuel economy improvements are present throughout the distributions of vehicle fuel economy.

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Fuel Economy Economy MPG 2008 150

Green Car Congress

JANUARY 13, 2017

In an expected ruling, US Environmental Protection Agency (EPA) Administrator Gina McCarthy finalized her decision to maintain the current greenhouse gas (GHG) emissions standards for model years 2022-2025 cars and light trucks. mpg-e (if all reductions were achieved exclusively through fuel economy improvements). Earlier post.)

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EPA Light Standards Fuel Economy 150

Green Car Congress

MARCH 15, 2013

Adjusted CO 2 emissions and adjusted fuel economy, MY 1975-2011. The report finds that CO 2 emissions rates and fuel economy values reflect a very favorable multi-year trend beginning in MY 2005. The fleet-wide average real world MY 2011 personal vehicle CO 2 emissions value is 398 g/mi and average fuel economy is 22.4

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Fuel Economy 2012 EPA Economy 284

Green Car Congress

SEPTEMBER 11, 2013

The first rapid prototype of their Thermoelectric Generator (TEG) for light vehicle applications is on display at Tenneco’s booth at the 2013 Frankfurt IAA Motor Show. For light duty passenger vehicles, the fuel economy improvement must be measured over the US06 cycle. Fuel Efficiency Thermoelectrics'

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Fuel Economy Waste Economy Fuel 218

Green Car Congress

DECEMBER 13, 2013

MY 2012 adjusted fuel economy is 23.6 mpg fuel economy improvement from MY 2011 to MY 2012 is the second largest annual improvement in the last 30 years. l/100 km) fuel economy, which, if achieved, will again represent all-time records. Click to enlarge. l/100 km), which is 1.2 mpg, or 22%. Click to enlarge.

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Fuel Economy 2012 Economy EPA 247

Green Car Congress

AUGUST 17, 2015

In a new report, researchers at the University of Michigan Transportation Research Institute (UMTRI) have calculated the actual, on-road fuel economy for the entire fleet of all vehicles in the US, and for different classes of vehicles, with primary interest in light-duty vehicles (cars, pickup trucks, vans, and SUVs), between 1923 and 2013.

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Fuel Economy Economy 2013 MPG 150

Green Car Congress

MARCH 11, 2012

Light duty vehicle characteristics for seven model years. Conventional gasoline vehicles continue to account for more than 95% of all light-duty vehicles. Fuel economy improvements for the hybrid vehicles vary considerably from 5-10% for the larger, luxury hybrid vehicles to more than 40%. Click to enlarge. and from 2.6%

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Fuel Economy 2011 Economy EPA 236

Green Car Congress

MARCH 22, 2017

l/100 km) in 2016, the The ICCT team assessed increased consumer label fuel economy (as opposed to the regulatory test fuel economy) to 35 mpg (6.71 The resulting trajectory would reduce CO 2 emissions by half and increase fuel economy by more than 60% from 2016 through 2030.

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Fuel Economy Economy Fuel Price 210

Green Car Congress

MAY 2, 2012

The Global Fuel Economy Initiative ( GFEI ) ( earlier post ) launched its second three-year effort to improve vehicle fuel economy around the world at the International Transport Forum in Leipzig. —“Global Fuel Economy Initiative Plan of Action 2012-2015. Earlier post.). Policy support.

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Fuel Economy Economy Global Fuel 231

Green Car Congress

JANUARY 10, 2017

Volatile gasoline prices have caused some regulators and carmakers alike to question the cost and effectiveness of current fuel economy standards, with some arguing they are too stringent and others saying they should be even stronger. —Ryan Kellogg, summarizing his research.

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Fuel Economy Chicago Economy Standards 150

Green Car Congress

FEBRUARY 24, 2011

US NRC panel’s summary estimates of the potential reduction in petroleum consumption by 2035 for vehicle powertrain types assuming that the entire potential of these technologies is used to improve fuel economy rather than performance. This is equivalent to increasing fuel economy from about 30 to about 60 MPG, from 12.5

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Fuel Economy Economy Environment Fleet 199

Green Car Congress

JULY 11, 2017

The ICCT team—John German and Aaron Isenstadt—concluded that diesels have and will retain two significant advantages over gasoline engines: significantly better fuel economy and cargo hauling and towing ability. Meeting the 2025 standard will require an average improvement in fuel economy of about 4.1%

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Diesel Light Fuel Economy 2017 186

Green Car Congress

APRIL 2, 2018

The US Environmental Protection Agency (EPA) Administrator Scott Pruitt announced the completion of the Midterm Evaluation (MTE) process for the greenhouse gas (GHG) emissions standards for cars and light trucks for model years 2022-2025, and his final determination that the current standards are not appropriate and should be revised.

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EPA Standards Emissions Light 199

Green Car Congress

NOVEMBER 20, 2009

Adjusted CO 2 emissions and adjusted fuel economy by model year. For the fifth consecutive year, the US Environmental Protection Agency (EPA) is reporting an increase in new vehicle fuel efficiency with a corresponding decrease in average carbon dioxide emissions for new US cars and light duty trucks. Source: EPA.

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Fuel Economy 2004 Economy EPA 268

Green Car Congress

MARCH 15, 2017

EPA Administrator Scott Pruitt and Department of Transportation Secretary Elaine Chao announced that EPA intends to reconsider its final determination issued on 12 January 2017 which recommended no change to the greenhouse gas standards for light duty vehicles for model years 2022- 2025. Earlier post.)

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EPA Standards Light Gas 150

Green Car Congress

SEPTEMBER 8, 2011

The types of vehicles consumers select has by far the most dominant impact on on-road fuel economy—the best vehicle currently available for sale in the US is nine times more fuel efficient than the worst vehicle. Average on-road fuel economy in the US for all vehicles in 2008 was 17.4 mpg US (13.5

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Fuel Economy Economy Fuel North America 252

Green Car Congress

NOVEMBER 18, 2010

For 2009, the last year EPA has final data from automakers, the average CO 2 emissions from new vehicles were 397 grams per mile and the average fuel economy value was 22.4 The report confirms that average CO 2 emissions have decreased and fuel economy has increased each year beginning in 2005. mpg (10.45

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Fuel Economy 2009 2010 EPA 210

Green Car Congress

SEPTEMBER 12, 2009

Average fuel economy of purchased new light-duty vehicles by month, including projection without the program. Generally, the trade-in vehicles must have had fuel economy of 18 mpg or less and be less than 25 years old. Source: Sivak and Schoettle 2009. Click to enlarge. mpg in July 2009 and 0.7 mpg in August 2009.

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Cash For Clunkers Fuel Economy MPG Purchase 246

Green Car Congress

MAY 24, 2010

California Air Resources Board Chairman Mary Nichols issued a statement applauding. President Obama’s announcement of the first-ever national policy to increase fuel efficiency and decrease greenhouse gas (GHG) pollution from medium- and heavy-duty trucks for model years 2014-2018. Earlier post.). Earlier post.). Earlier post.).

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Fuel Economy Economy Standards California 225

Green Car Congress

MARCH 5, 2013

Vehicle size, a key determinant of fuel economy, has shown a reduction in OECD countries, while the non-OECD trend is toward bigger vehicles. The analysis, an update of an earlier work using data from 2010 and 2011, found that the global average for light-duty vehicle fuel economy was 7.2 Source: GFEI.

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Fuel Economy Economy Fuel 2005 170

Green Car Congress

JANUARY 25, 2020

The gasoline direct injection (GDI) engine is one of the most prominent technologies car manufacturers adopted to achieve the fuel economy and carbon dioxide emission goals established in 2012 by the US Environmental Protection Agency. The market share of GDI-equipped vehicles increased from 2.3% W/m 2 over urban regions. Rawad Saleh.

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Climate Carbon Engine Fuel Economy 348

Green Car Congress

JUNE 29, 2013

Rolf Reitz of the University of Wisconsin found that reactivity controlled compression ignition (RCCI) ( earlier post ) in a light-duty engine can meet Tier 2 Bin 5 NO x levels without aftertreatment, while offering a 4% improvement in fuel consumption and 7.3% —Kokjohn and Reitz. Sage L Kokjohn and Rolf D.

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Light Engine Wisconsin Fuel Economy 207

Green Car Congress

FEBRUARY 12, 2016

The baseline CNG buses had an average fuel economy of 4.04 These results indicated that the BEBs have an average fuel economy that is nearly 4 times higher than that of the CNG buses. The NREL team found, inter alia , that the battery-electric buses (BEBs)had an overall average efficiency of 2.15 miles per DGE.

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Fuel Economy Economy Fuel Los Angeles 150