On May 24, 5:33 pm, Asbjorn Hojmark wrote:
On Wed, 23 May 2007 10:43:54 GMT+5, (Doug

Hoffman) wrote:
Many European cars rutinely do 35-45 MPG *on average* and close to
50 MPG on a straight and level road. That's running on diesel,
Currently California and 4 other states have emission standards that
essentially preclude diesel cars and light trucks.

What emission are they measuring? Surely not CO2, which is typically
much lower than with gasoline for the same power. (At least on the
kind of diesel cars we use over here).

Oxides of nitrogen (NOx) is the problem compound for diesels. New
catalytic aftertreatment technology will address that.

http://findarticles.com/p/articles/m...78/ai_53476149

Effective diesel particulate filters (DPFs) already exist.


Actually, the state of California has tried to regulate CO2 emissions
(and may still be trying, I'm not sure):

http://www.greencarcongress.com/2004...kers_chal.html

Regards,

-doug