Downsizing Fuel Economy Miles Study 
Green Car Congress
FEBRUARY 22, 2018
Their study is publishedin the ACS journal Environmental Science & Technology. Bottom: Total particle-phase PAH emissions, expressed in ng/mile, for both test vehicles over the LA92 cycle. LEVIII will begin a four year phase-in of a tighter 1 mg/mile starting in 2025. In the study, the team used two MY 2016 passenger cars.
Green Car Congress
OCTOBER 16, 2013
2021) over a 150,000-mile vehicle lifetime, but that further work must be done to address achieving the more stringent 1 mg/mi target (LEV III in 2025). GDI is a strategy to improve fuel efficiency that is rapidly gaining market acceptance, as illustrated by the popularity of Ford’s GDI EcoBoost engines. Earlier post.) 3 mg/mi for 90K?150K
Green Car Congress
JUNE 14, 2011
Based on the results of the study, CAR believes the economic risk to the auto industry connected to mandating permanent fuel economy standards in the long run is “ very serious ” The group recommends periodic review to assess the rate of technology development and cost reduction of advanced technologies leading up to 2025.
Green Car Congress
OCTOBER 10, 2012
The analysis used the Ohio State University EcoCAR, a student prototype PHEV, as the basis for the preliminary fuel economy evaluation. This evolution has led to the point where achieving significant fuel savings through the introduction of new technologies has become difficult. —Skarke et al.
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. A new study by a team at the University of Toronto has made a preliminary assessment of the climate trade-off (i.e.,
Green Car Congress
APRIL 26, 2009
Proposed by John Heywood and colleagues at MIT in 2005, the basic premise of E85 boosting is that ethanol (or other lower alcohols) suppresses knock due to the large evaporative cooling effect it has on the air-fuel mixture when injected directly into the cylinder, supplemented by ethanol’s inherent high octane number. Earlier post.)
Green Car Congress
MAY 12, 2017
A new study quantifying emissions from a fleet of gasoline direct injection (GDI) engines and port fuel injection (PFI) engines finds that the measured decrease in CO 2 emissions from GDIs is much greater than the potential climate forcing associated with higher black carbon emissions from GDI engines. —Saliba et al.
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