Urea injection

jmonson_21 · 02-25-2009, 11:26 PM

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?

Jaybeecon · 02-26-2009, 07:25 AM

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.

diesel6.7 · 02-26-2009, 07:39 AM

well said Jaybee...

Vin63 · 02-26-2009, 11:08 AM

Quote:

Originally Posted by Jaybeecon

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.

Silverado6600 · 02-27-2009, 01:56 PM

You guys know that Urea an be used for explosive purposes right? lol.

diesel6.7 · 03-02-2009, 08:48 AM

O boy, here we go.... explosives !!!

sleadhead · 03-04-2009, 12:55 AM

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?

Silverado6600 · 03-04-2009, 06:28 AM

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.

diesel6.7 · 03-04-2009, 08:39 AM

I have heard that there are some urea places available at gas stations already.....

Carl Lassiter · 03-11-2009, 05:05 PM

Quote:

Originally Posted by Jaybeecon

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.

02-25-2009, 11:26 PM	#1
jmonson_21 Diesel Fanatic Join Date: Apr 2008 Location: Nebraska Posts: 65 Garage: active iTrader: (0)	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? __________________ 2004.5 LLY, Extended cab short box Diablo Predator 4 inch turbo back AFE stage 2 with pro guard 7 20 inch RBP 93 series Nitto Terra Grappler 285/50/20 Rhino lining over the rails 06 tow mirrors
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02-26-2009, 07:25 AM	#2
Jaybeecon Diesel Specialist Join Date: Mar 2005 Location: Knoxville, TN Posts: 589 Garage: active iTrader: (0)	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. __________________ Jaybee '07 GMC Sierra 2500HD LMM CC 4wd longbed. Steel Grey Down the road now - '02 2500 Xcab 8.1/Allison '96 2500 Xcab 5.7/5-sp '94 2500 Xcab 5.7/5-sp Couple of Toy trucks before that.
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02-26-2009, 07:39 AM	#3
diesel6.7 Diesel Fanatic Join Date: Jul 2007 Location: phoenix Posts: 55 iTrader: (0)	well said Jaybee...
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02-27-2009, 01:56 PM	#5
Silverado6600 Diesel Head Join Date: Jan 2009 Location: Fort Hood, TX Posts: 36 Garage: active iTrader: (0) Armed Forces Club Member	You guys know that Urea an be used for explosive purposes right? lol. __________________ "We the willing, led by the untrained, do the impossible for the ungrateful. We've done so much for so long with so little, we are now qualified to do anything with nothing." - Unkown Sgt Sean M. Burnett 937th En Co '08 2500HD CC/SS (Black on Black) 6.6L LMM MBRP 4" Duals Quad Stealth II EGR Blocker Plate PCV Reroute
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03-02-2009, 08:48 AM	#6
diesel6.7 Diesel Fanatic Join Date: Jul 2007 Location: phoenix Posts: 55 iTrader: (0)	O boy, here we go.... explosives !!!
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03-04-2009, 12:55 AM	#7
sleadhead Diesel Technician Join Date: Jan 2006 Location: wisconsin dells wisconsin Posts: 176 iTrader: (0)	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? __________________ 03 2500 hd d/max ext cab s/b4x4pewter 295/75/16 general graber at-2 on stock rims green keys and leveled out/edge juice/attitude moog ball joints/spicer tie rods and u joints straight piped/delta dual lid toolbox/cipa tow mirrors 9-1-09 134k original squirters transmission adapter houseing replace at 89k
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03-04-2009, 06:28 AM	#8
Silverado6600 Diesel Head Join Date: Jan 2009 Location: Fort Hood, TX Posts: 36 Garage: active iTrader: (0) Armed Forces Club Member	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. __________________ "We the willing, led by the untrained, do the impossible for the ungrateful. We've done so much for so long with so little, we are now qualified to do anything with nothing." - Unkown Sgt Sean M. Burnett 937th En Co '08 2500HD CC/SS (Black on Black) 6.6L LMM MBRP 4" Duals Quad Stealth II EGR Blocker Plate PCV Reroute
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03-04-2009, 08:39 AM	#9
diesel6.7 Diesel Fanatic Join Date: Jul 2007 Location: phoenix Posts: 55 iTrader: (0)	I have heard that there are some urea places available at gas stations already.....
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