> -----Original Message-----
> From: piclist-bounces@mit.edu 
> [mailto:piclist-bounces@mit.edu] On Behalf Of Tachyon
> Sent: Monday, December 18, 2006 1:10 PM
> To: Microcontroller discussion list - Public.
> Subject: Re: [EE]:: Bimota centre hub steering
> 
> The fact is that diesel is cleaner than gasoline in almost 
> all aspects.

Not currently in the US, it isn't.  Automotive diesels in the US are
dirty, and heavy/industrial diesels are unbelievably dirty.  So dirty
that you can't put enough people on a bus or a commuter train to make
them pollution competitive to all of those people driving a single
passenger Suburban.

> Especially in important greenhouse gas emissions.

If I spend 5 seconds worrying about greenhouse emissions in a year, then
I consider it 5 wasted seconds that I'll never get back.  I'm a lot more
concerned with car drivers getting stuck with the pollution blame (and
cost) for pollution they don't generate, and with the very real
particulates, NOx and HCs that diesels put out.

> Yes, given the horrendously low quality diesel sold in the US 
> until this year, diesel did have higher NOx and particulate 
> emissions in _some_ configurations and conditions, but not 
> all. However this will change with the newly mandated 
> low-sulphur diesel.

There are 3 diesel cars in the 2006 EPA certification database:  Jetta,
Jeep Liberty, and Mercedes.  They're all dirtier than heavy duty gas
pickups/SUVs.

It may change with low sulphur fuel but I'm skeptical.  The numbers will
tell.

--steve


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