Study finds fleet switch from PFI to GDI engines will result in net reduction in global warming
Green Car Congress
MAY 12, 2017
Gasoline direct-injection (GDI) engines have higher fuel economy compared to the more widely used port fuel injection (PFI) engines. Among the findings from the study: For vehicles certified to the same emissions standard, there is no statistical difference of regulated gas-phase pollutant emissions between PFIs and GDIs.
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