[opendtv] Re: Euro Cars
- From: "Richard C. Ramsden" <ramsden@xxxxxxxxxxx>
- To: opendtv@xxxxxxxxxxxxx
- Date: Tue, 16 Dec 2008 23:48:24 -0500
AH, no, they are not.
The vehicle's MPG is not in the equation in US emissions testing.
Otherwise large things would not pass. There may be some differences
between state emissions testing and federal regs.
European diesel fuel has much less sulfur. You can blame the trucking
industry for that.
John Shutt wrote:
Richard,
US automobile emissions are measured in grams per mile, not grams per
gallon. European Union emission are measured in grams per kilometer,
which I suppose could somehow be construed as grams per mpg.
European regulation will require diesel with <=10 ppm of sulfur by
2009. US diesel allows a maximum of 15 ppm of sulfur.
Current US diesel emissions (Tier II) are more restrictive than the
current European (Euro 4) standards, especially in particulate
emissions. This is why the few European diesels available in the US
were withdrawn in 2007. Some have returned with the addition of urea
injection to meet the current Tier II standards, and will also meet
the September 2009 Euro 5 standard.
US automobile emissions are measured in grams per mile. European
Union emission are measured in grams per kilometer.
http://www.dieselnet.com/standards/us/ld_t2.php
http://www.dieselnet.com/standards/eu/ld.php
John
----- Original Message ----- From: "Richard C. Ramsden"
<ramsden@xxxxxxxxxxx>
The European diesels use a different fuel formulation, though I think
the US is getting closer to it. The other problem is US EPA regs are
based on emissions per gallon, not emissions per mpg. Maybe the new
energy secretary will make the rules a bit less stupid.
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