SCR and Urea
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Super Moderator
Joined: Oct 2005
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From: SW Virginia
SCR and Urea
Here's an interesting article I found today about the upcoming 2010 emissions standards and Urea injection:
Everything You Wanted to Know About Urea But Were Afraid to Ask - PickupTrucks.com News
Facts About SCR
Could be making its way to a diesel near you?
Everything You Wanted to Know About Urea But Were Afraid to Ask - PickupTrucks.com News
Facts About SCR
Could be making its way to a diesel near you?
Post Fiend
Joined: Oct 2007
Posts: 10,501
Likes: 5
From: Faibanks Ak.
Making ammonia in your exhaust is that like going from R12 to134A and a warning on the can that this stuff will kill anything big enough to die.
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Posting Guru
Joined: May 2001
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If the system is working properly, ammonia will never be released to the atmosphere. The by-product of this technology is nitrogen gas and water.
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Cargo Master
Joined: Nov 2003
Posts: 2,585
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From: Duluth, Mn.
I hate to say it, but if this compound is publicly, easily, and readily available, there's gonna be some Evil Do'er (thanks GWB
) that will use it for ill intentions.
So eventually, You'll have to have some kind of security clearance, monitoring system, or other regulation to buy it?
) that will use it for ill intentions. So eventually, You'll have to have some kind of security clearance, monitoring system, or other regulation to buy it?
Post Fiend
Joined: Oct 2005
Posts: 10,626
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From: Plano TX and Brentwood TN
It's already available out there. Not exactly the same thing, but all the components are available and very easy to get your hands on. Rather or not someone could fashion it into a bad thing will depend on their knowledge, but that's the case really no matter what your talking about.
Fleet Mechanic
Joined: Jan 2007
Posts: 1,741
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If there's a failure in the system, or urea levels get too low, the ECM will reduce engine power (as a "punishment" to the driver, I've been told), to keep the engine within limits. If the operator continues operation, with the failure still present, the engine will simply refuse to start, or shut down.
Mandated by the EPA for 2010.
-blaine
Cargo Master
Joined: Nov 2003
Posts: 2,585
Likes: 1
From: Duluth, Mn.
It's already available out there. Not exactly the same thing, but all the components are available and very easy to get your hands on. Rather or not someone could fashion it into a bad thing will depend on their knowledge, but that's the case really no matter what your talking about.
Posting Guru
Joined: May 2001
Posts: 1,082
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Simple. Two ways: 1) severely reduced engine power. 2) complete engine shutdown.
If there's a failure in the system, or urea levels get too low, the ECM will reduce engine power (as a "punishment" to the driver, I've been told), to keep the engine within limits. If the operator continues operation, with the failure still present, the engine will simply refuse to start, or shut down.
Mandated by the EPA for 2010.
-blaine
If there's a failure in the system, or urea levels get too low, the ECM will reduce engine power (as a "punishment" to the driver, I've been told), to keep the engine within limits. If the operator continues operation, with the failure still present, the engine will simply refuse to start, or shut down.
Mandated by the EPA for 2010.
-blaine
Blaine is correct. There will be driver "inducement" features that are part of OBDII.
Posting Guru
Joined: May 2001
Posts: 1,082
Likes: 0
I hate to say it, but if this compound is publicly, easily, and readily available, there's gonna be some Evil Do'er (thanks GWB ) that will use it for ill intentions.
So eventually, You'll have to have some kind of security clearance, monitoring system, or other regulation to buy it?
) that will use it for ill intentions. So eventually, You'll have to have some kind of security clearance, monitoring system, or other regulation to buy it?
About the only ill intention you could do with it is paint obscenities in your neighbors yard with it. It will kill grass like Roundup at 32.5% concentration. Dilute it and it will grow grass like crazy!