2013 Chevy Cruze 2.0L Turbo Diesel for U.S.

101lifts2 · 09-05-2011, 07:04 PM

As predicted..
http://abcnews.go.com/Business/ceo-c...ry?id=14131519

The U.S. EPA has a hard on for both oxides and particulates when it comes to diesels vs. Euro EPA has a hard on for fuel economy and CO2 emissions. In order for diesels in the country to meet US EPA regulations, they HAVE to fun slightly lower A/F ratios to reduce the NOx output and subsequently add in a particulate filter to catch the particulate matter. Then, diesel fuel needs to be injected post compression in order to heat the converter up so these particulates can be burned. Both of these equate to lower fuel economy.

The Europeans on the other hand allow for higher oxides and higher PM, but require lower fuel consumption and lower CO2 output. In order to lower CO2 output, you can really only lower HC/CO output by reducing fuel usage.

09-05-2011, 07:04 PM	#21
101lifts2 WSB Champion Join Date: Nov 2008 Location: Anaheim, CA Moto: 2009 Kawi ZX6R Posts: 5,570	As predicted.. http://abcnews.go.com/Business/ceo-c...ry?id=14131519 The U.S. EPA has a hard on for both oxides and particulates when it comes to diesels vs. Euro EPA has a hard on for fuel economy and CO2 emissions. In order for diesels in the country to meet US EPA regulations, they HAVE to fun slightly lower A/F ratios to reduce the NOx output and subsequently add in a particulate filter to catch the particulate matter. Then, diesel fuel needs to be injected post compression in order to heat the converter up so these particulates can be burned. Both of these equate to lower fuel economy. The Europeans on the other hand allow for higher oxides and higher PM, but require lower fuel consumption and lower CO2 output. In order to lower CO2 output, you can really only lower HC/CO output by reducing fuel usage. __________________ Train Hard Ron Paul - 2012 Mark of Excellence GM

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