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Old 02-26-2009, 12:26 AM   #1 (permalink)
jmonson_21
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Urea injection

i see people talking about "urea injection" and i've seen it in some diesels magazines. it sounds like everyone is saying buy a new duramax before they add this...this may be a dumb question but what is urea injection exactly?

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Old 02-26-2009, 08:25 AM   #2 (permalink)
Jaybeecon
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In simple terms: Urea injection uses a separate chemical tank to add urea to reduce emmisions. It's a chemical process where the urea bonds with particulates in the exhaust to make less harmful residue. It means that there will be a separate tank for the urea (I've heard that you can expect about 15k miles on a tankful). And no, I don't think you can pee in your urea tank to refill it.

I think Mercedes is already running a urea injection system and Honda is soming out with one.

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Old 02-26-2009, 08:39 AM   #3 (permalink)
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well said Jaybee...
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Old 02-26-2009, 12:08 PM   #4 (permalink)
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Quote:
Originally Posted by Jaybeecon View Post
In simple terms: Urea injection uses a separate chemical tank to add urea to reduce emmisions. It's a chemical process where the urea bonds with particulates in the exhaust to make less harmful residue. It means that there will be a separate tank for the urea (I've heard that you can expect about 15k miles on a tankful). And no, I don't think you can pee in your urea tank to refill it.

I think Mercedes is already running a urea injection system and Honda is soming out with one.
Yep, the urea systems are used to reduce the nitrogen oxide (NOx) emmissions. The Mercedes version is part of their BlueTec Series of diesels.
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Old 02-27-2009, 02:56 PM   #5 (permalink)
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You guys know that Urea an be used for explosive purposes right? lol.
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Old 03-02-2009, 09:48 AM   #6 (permalink)
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O boy, here we go.... explosives !!!
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Old 03-04-2009, 01:55 AM   #7 (permalink)
sleadhead
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So Urea is a chemical? And if a tank only last 15k miles how and where does one refill the tank? and and what cost is one going to have to pay to refill the tank?
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Old 03-04-2009, 07:28 AM   #8 (permalink)
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Urea can be found in a few different forms. I'm not sure what form they plan on using. My guess is that you'll probably have to go into a dealer and have them refill the tank, or replace it if they go to a canister type. All I know is it better be under warranty if they do. Good thing I bought my truck before they decide to come out with this crap.
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Old 03-04-2009, 09:39 AM   #9 (permalink)
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I have heard that there are some urea places available at gas stations already.....
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Old 03-11-2009, 06:05 PM   #10 (permalink)
Carl Lassiter
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Quote:
Originally Posted by Jaybeecon View Post
In simple terms: Urea injection uses a separate chemical tank to add urea to reduce emmisions. It's a chemical process where the urea bonds with particulates in the exhaust to make less harmful residue. It means that there will be a separate tank for the urea (I've heard that you can expect about 15k miles on a tankful). And no, I don't think you can pee in your urea tank to refill it.

I think Mercedes is already running a urea injection system and Honda is soming out with one.
I believe it needs refilling every 5,000 max, maybe even less. This plus the grille is why I'm getting an 09.

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