Diesel fuel is now up to snuff with the euro stuff. The US diesel just went from 500 ppm sulfur to 15 ppm sulfur for 2007. This was necessary for the new emission control systems needed to meet 2007 regulations. The sulfur in the fuel destroys the high concentration catalysts that are on the new emission systems. The 2007 engines are much cleaner than the old ones, not that the old ones were really that bad.
-------------- Original message ----------------------
From: "Zito, James A (GE Infra, Energy)" <james.zito@ge.com>
>
> Soot contains harmful chemicals. Soot is what makes acid rain and smog.
>
> While I agree that soot contains harmful chemicals, and probably contribute a
> bit to smog, there is no way it is the cause of acid rain. Acid rain is caused
> by NOx and SOx emissions. These chemicals remain airborne and combine with
> water vapor reacting to generate nitric and sulfuric acids.
>
> And for my next assertion with no link to back it up.....Take it for what you
> will....
> During the big north east blackout a few years ago satellite and other
> monitoring showed that most of the pollution over the NE and western Atlantic
> vanished. People were still driving around, but the power industry was closed
> as was much of the other heavy industry.
>
> FWIW I think diesel will be having some trouble with sales till the US tech and
> fuel gets up to the standards they have in Europe.
>
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