[V8] 40 mpg A8

[sdewitt@stx.rr.com]

Modern Diesel engines produce emissions far less than the modern 
gasoline engine in every category except particulate emissions. 
Particulate converters (much like a catalytic converter) exist and work 
excellent, however even the smallest amount of sulfur will render them 
useless. Remove the sulfur from the fuel and you can use the converter. 
This also goes with Lean burn engines. Catalytic converters exist which 
can turn oxides of nitrogen into N2 and O2, however for the converters 
to work there must be no sulfur in fuel. Supposedly in 06 low and no 
sulphur fuels will be phased into production at US refineries.

----- Original Message -----
From: dsaad at icehouse.net
Date: Thursday, October 6, 2005 9:40 am
Subject: Re: [V8] 40 mpg A8

> What is it about the low sulfur fuel anyway?
> Do these engines use technology different from the 4 banger TDI?
> I would love to see a V6 diesel that has enough power to pull a 
> small camp
> trailer but still gets decent mileage.
> It would be even better if it could burn bio-diesel.
> 
> This is one of the big holes in Detroit's long term strategy. 
> (surprise)They make a great dump truck diesel, but reasonably 
> sized and efficient car
> motors seem to be beyond their grasp.
> 
> 
> 
> Dave
> 
> Quoting Kent McLean <kentmclean at mindspring.com>:
> 
> > Last night on the Discovery Channel, Top Gear did a test of
> > a twin-turbo V8 engined A8: can it go from London to Edinburgh
> > and back to London -- 800 miles -- on one tank of fuel? Yes.
> > Jeremy Clarkson managed to average almost 40 MPG to do it,
> > just barely making it back to the filling station long after
> > the "miles to empty" had hit zero.
> >
> > How?  The engine was a 4.0L diesel, which we don't get here
> > in the USofA.  Maybe with gas over $3/gallon here, Audi well
> > re-evaluate its position.
> >
> > --
> > Kent McLean
> > '94 100 S Avant, "Moody"
> > '89 200 TQ, "Bad Puppy" up in smoke
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> 
> 
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