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today's wsj//page d7
headline reads:study links soot to heart disease - low-grade inflamations trigger defense mechanisms that tend to clog arteries .....
and yes. diesel engines are identified as major emmiters. Last edited by janko; 12-16-2003 at 10:16 AM. |
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so are you suggesting that all diesel engines be sentenced to the junk yard ?
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Gasoline engines produce as much or more breathable particulates, just less visible. Breathable particulates are 1 micron or less, diesel soot is usually larger. Nasty stuff, though.
The fun thing is that decent fuel reduces the diesel soot to levels below gas engine particulates.....Biodiesel to the rescue! Peter
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1972 220D ?? miles 1988 300E 200,012 1987 300D Turbo killed 9/25/07, 275,000 miles 1985 Volvo 740 GLE Turobodiesel 218,000 1972 280 SE 4.5 165, 000 - It runs! |
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sounds good to me, peter. maybe we could just a put a soot grabber on each diesel engine and be way ahead of the game.
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Mine has one, a trap catalyst in the downpipe. The Volvo and 220D, alas, make LOTS of smoke.
Peter
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1972 220D ?? miles 1988 300E 200,012 1987 300D Turbo killed 9/25/07, 275,000 miles 1985 Volvo 740 GLE Turobodiesel 218,000 1972 280 SE 4.5 165, 000 - It runs! |
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Sounds like CARB propaganda to me !
So, why don't we get rid of all the high fat junkfood venders such as McDonalds et al. and use that mega-supply of oil and resources to foster a steady , inexpensive and renewable supply of enviro-friendly bio- fuel and cut the incidence of HEART DISEASE to nil. :p
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Diesel-guy |
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Quote:
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Quote:
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89 300E 79 240D 72 Westy 63 Bug sunroof 85 Jeep CJ7 86 Chevy 6.2l diesel PU "The object of life is not to be on the side of the majority, but to escape finding oneself in the ranks of the insane." Marcus Aurelius |
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Quote:
I didn't realize there was a big anti-diesel movment from the "Green" side
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89 300E 79 240D 72 Westy 63 Bug sunroof 85 Jeep CJ7 86 Chevy 6.2l diesel PU "The object of life is not to be on the side of the majority, but to escape finding oneself in the ranks of the insane." Marcus Aurelius |
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Is it not true that one cannot buy a new diesel automobile in California these days, but you can buy all the Lincoln Naviguzzlers you want ?
I believe that there is a larger group than we may realize that would like to crush every diesel vehicle in the USA if they could !
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Diesel-guy |
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lots of 'green' minded people are looking at diesels for a few reasons:
1. a new car is not needed- used cars are recycled... 2. diesels will run on environmentally friendly fuels, which can decrease all of those emissions concerns greatly. 3. landfill waste decreased by biofuel use. 4. much more.... only ignorant think gassers are better for environment. even hybrids pollute more when the cycle of the vehicle is taken into consideration.
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Cannondale ST600 XL Redline Monocog 29er 2011 Mini Cooper Clubman 2005 Honda Element EX www.djugurba.com www.waldenwellness.com |
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Yes, the environmental nuts threw a fit about deisels due to the soot (particulate) emissions. Turns out the vast majority is from old (pre 70's) trucks and off-road equipment. Newer diesels dont' produce anywhere near as much soot.
Diesel soot is, however, nasty stuff, full of aromatic compounds known to cause cancer. The good thing is that US diesel fuel is crap -- add some oxygenating compounds (like biodiesel), and both the soot and the carcinogens drop dramatically. Peter
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1972 220D ?? miles 1988 300E 200,012 1987 300D Turbo killed 9/25/07, 275,000 miles 1985 Volvo 740 GLE Turobodiesel 218,000 1972 280 SE 4.5 165, 000 - It runs! |
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Re: Re: today's wsj//page d7
Quote:
Given how much money converting stuff to natural gas would cost, it makes sense to me that some big business would be in on it. We'd still be dependent on The Very Big Corp., Inc. The Union of Concerned Scientists was pushing for this Natural Gas conversion of school buses .... which would cost school districts a bundle ..... when the buses already have the engines for putting in Canola (or whatever). That would solve the particulate and sulfur problems. I wrote to them telling them that politely. I did get a response, but it was worded in such a way that I suspected someone was a schill for some industry guys in there. (Long time ago I worked in a PR firm that shall remain nameless. I have a massively overactive Corporate Bulls*$t Detector.)
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Growth for the sake of growth is the ideology of the cancer cell. -- Edward Abbey 1984 300SD: Hilda the veggie vundercar |
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The primary pollutant in diesel fuel is the sulfur. However last time they lowered the sulfur content there were many IPs and lift pumps that couldn't take it anymore.
I'm sure everyone here has heard of the conservation of mass, well as you well know mass cannot be destroyed or created (other than nuclear stuff ) so that gas which weighs in around 7lb/gal doesn't just disappear. If your car gets 30mpg then you're emitting .23lb/ mile. I read in a book somewhere that for every gallon of gas burnt 5lbs of pure carbon (like those grill bricks) is emitted with the other two being in other forms. Now if you drive a gas hog like the Navigator getting about 15mpg then go ahead and double that to .46lb/mile. As for diesels they pollute visually much more but the gases aren't nearly as bad as gassers. Also since we are talking about pollution here it takes much more energy to refine a gallon of gas than diesel, diesel is the byproduct of refined gas. Because of this it contains more energy per gallon than gas which yields better mileage. If you get more miles to the gallon then you are polluting less.
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Jeff M. Mercedes W123 DIY pages are now located here. 1983 / 1984 300D Sold 2000 CLK430 Cabriolet ~58k Sold 2005 Avalanche 4x4 ~66k |
#15
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if diesel fuel is a by-product of refining gasoline, why does it cost as much as or more than regular gas?
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