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  #1  
Old 08-04-2008, 10:42 PM
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Mercedes diesels among the worse polluters

http://autos.yahoo.com/articles/autos_content_landing_pages/610/dirty-driving-top-10-worst-polluters

Damn dirty diesels!
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  #2  
Old 08-05-2008, 12:39 AM
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OK, Chemistry and / or physics aren't my strong suit anymore, but something stated in there doesn't quite add up to ME.

Burning one gallon of diesel emits 20 Pounds of CO2, a gallon only weighs 7ish lbs.

Even considering a generous air/fuel mix this seems a bit extreme to me. Particularly considering all the other things that are emitted, NO2, water ....
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  #3  
Old 08-05-2008, 06:05 AM
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Old news/repost.

Top 10 Worst Polluters
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  #4  
Old 08-05-2008, 07:43 AM
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Quote:
Originally Posted by kknudson View Post
OK, Chemistry and / or physics aren't my strong suit anymore, but something stated in there doesn't quite add up to ME.

Burning one gallon of diesel emits 20 Pounds of CO2, a gallon only weighs 7ish lbs.

Even considering a generous air/fuel mix this seems a bit extreme to me. Particularly considering all the other things that are emitted, NO2, water ....
Hmmmmmm, it takes two oxygens to burn carbon completely. How could the ratio be 20:1? I mean, carbon is only 16/12 greater mass than Oxygen. It ought to be something like 5:2, right? Somebody's finger is on the scale.
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  #5  
Old 08-05-2008, 08:46 AM
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All those diesel owners should trade their environmental deathtraps in on something powered by a nice clean Chevy V8...
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  #6  
Old 08-05-2008, 01:21 PM
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Originally Posted by PaulC View Post
All those diesel owners should trade their environmental deathtraps in on something powered by a nice clean Chevy V8...
The new diesels that this article doesn't mention are many times cleaner than any gasoline engine from a few years ago, and that's by the EPA's own gas-biased pollution scale which doesn't even take into account CO2 emissions. Check it out here:
www.fueleconomy.gov

The fact is, how recently an engine was made makes a much bigger difference in pollution than whether it's a gas or diesel.
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  #7  
Old 08-05-2008, 01:27 PM
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Other car makers are ahead of Mercedes Benz.....I want to see you post this on the diesel side and get out alive. O.K. ladies and gentlemen, place your bets....accepting cash, dracma, rubies..
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  #8  
Old 08-05-2008, 03:17 PM
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Quote:
Originally Posted by DieselAddict View Post
The new diesels that this article doesn't mention are many times cleaner than any gasoline engine from a few years ago, and that's by the EPA's own gas-biased pollution scale which doesn't even take into account CO2 emissions. Check it out here:
www.fueleconomy.gov
Will you please at least let me put the lure into the pond before you jump for it?
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  #9  
Old 08-05-2008, 04:03 PM
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Will you please at least let me put the lure into the pond before you jump for it?
I was just stating some facts. If you don't like them, that's too bad.
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  #10  
Old 08-05-2008, 04:09 PM
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My engine runs on fish juice and it's filthy.
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  #11  
Old 08-05-2008, 04:13 PM
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Originally Posted by DieselAddict View Post
I was just stating some facts. If you don't like them, that's too bad.
I love all the facts. I also love the $25 someone now owes my PayPal account in regard to a little bet I had placed regarding who would first respond to my post.
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  #12  
Old 08-05-2008, 06:57 PM
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I love all the facts. I also love the $25 someone now owes my PayPal account in regard to a little bet I had placed regarding who would first respond to my post.
I can't stop laughing!
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  #13  
Old 08-06-2008, 01:44 AM
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Quote:
Originally Posted by kknudson View Post
OK, Chemistry and / or physics aren't my strong suit anymore, but something stated in there doesn't quite add up to ME.

Burning one gallon of diesel emits 20 Pounds of CO2, a gallon only weighs 7ish lbs.

Even considering a generous air/fuel mix this seems a bit extreme to me. Particularly considering all the other things that are emitted, NO2, water ....
you're forgetting the stochiometric ratio. its not just diesel thats being burnt. there is air being burnt as well.
IIRC diesel is 17:1.
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  #14  
Old 08-06-2008, 06:21 PM
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OK neanderthal, I understand that.

But that would imply 17 Gallons of oxygen, right.
17 Gallons of air doesn't weigh much.

Still don't have 20 lbs in there.


Thanks
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  #15  
Old 08-06-2008, 06:29 PM
Ta ra ra boom de ay
 
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Maybe they're are planning on charging $38.95 for the carbon credits. That would be 20 pounds.
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1986 300E 220,000 miles+ transmission impossible
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Reading your M103 duty cycle:
http://www.peachparts.com/shopforum/831799-post13.html
http://www.peachparts.com/shopforum/831807-post14.html
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