Downsizing Fleet Fuel Economy Pollution 
Green Car Congress
JULY 14, 2016
The upside of gasoline direct injection (GDI) engines is widely seen as being improved fuel economy coupled with an increase in specific power (especially with turbocharging), enabling significant downsizing. They assumed a baseline fuel economy of 21.4 A significant fraction of the GDI PM 2.5 Click to enlarge.
Green Car Congress
FEBRUARY 22, 2018
The researchers assessed the gaseous, particulate, and genotoxic pollutants from two current technology gasoline direct injection vehicles when tested in their original configuration and with a catalyzed gasoline particulate filter (GPF). liter downsized turbocharged centrally-mounted direct injection engine. Yang et al.
Green Car Congress
MAY 27, 2014
For the first time since UCS began the Automaker Rankings report in 2000, all eight major automakers reduced their average greenhouse gas (GHG) and smog-forming emissions compared to their fleet averages from 1998, the model year examined in the first report. Methodology.
Green Car Congress
NOVEMBER 8, 2011
Current fuel economy policy clearly demonstrates this fact. The federal government is pushing their fleet-procurement decisions almost completely to EVs and hybrids irrespective of costs. —“The Case for Technology Neutral Public Policy in Fuel Economy Debate”.
Green Car Congress
DECEMBER 9, 2016
By rightsizing engines with available technologies, automakers are able to continue applying the benefits of smaller turbocharged engines while fine-tuning powertrain systems to further optimize fuel economy, emissions and performance. Regional highlights include: In North America, more engine downsizing is expected.
Green Car Congress
APRIL 2, 2010
Yesterday, the US Environmental Protection Agency (EPA) and the National High Traffic Safety Administration (NHTSA) jointly established increasingly stringent greenhouse gas emission standards under the Clean Air Act for 2012 through 2016 model-year vehicles and fuel economy standards under the Corporate Average Fuel Economy program, respectively.
Green Car Congress
DECEMBER 17, 2015
This goal reflects contributions from both improved engines (7%–14% reduction in fuel consumption) and improved fuels (including 15 billion gallons/year of advanced biofuels). At a fleet level, Optima will result in an additional 9%–14% fleet greenhouse gas (GHG) reduction by 2040.
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