merlin5577
Work harder, others on welfare depend on you!
Scott, any word on how the urea will effect fuel economy?
Urea Injection Discussion thread (DIESEL)
- Thread starter Stumpuller6.5
- Start date
First tests with Cummins and Detroit have yielded 3-5% increases over the '07 EPA product.
We are waiting for real world input right now, but everybody has pre-bought '09 engines in the first '10 trucks to avoid the additional price of the '10 engines.
Cummins has just run out of '09 engines, so everything going forward will be the new stuff. I think Detroit still has some blocks left.
All you need to qualify an engine as an "engine" is a serialized block with a crank in it, so they had several left over, especially with the slow truck sales of '09
merlin5577
Work harder, others on welfare depend on you!
3-5% is great. That about makes up for the fuel economy loss on the 07' Vs. 06' models. 
3-5% is great. That about makes up for the fuel economy loss on the 07' Vs. 06' models.
Yes it does, we are jazzed! I hope the light duty engines follow this, and I am told they will
merlin5577
Work harder, others on welfare depend on you!
3-5% is great. That about makes up for the fuel economy loss on the 07' Vs. 06' models.
Yes it does, we are jazzed! I hope the light duty engines follow this, and I am told they will
If the big motors are gaining 3-5%, its not out of the question to say the light duty engines will gain more. I know the Cummins 6.7L does not use Urea, but the Ford 6.7L and new Duramax do.... so it should (should is the key word) increase their fuel economy as well. Excellent!
3-5% is great. That about makes up for the fuel economy loss on the 07' Vs. 06' models.
Yes it does, we are jazzed! I hope the light duty engines follow this, and I am told they will
If the big motors are gaining 3-5%, its not out of the question to say the light duty engines will gain more. I know the Cummins 6.7L does not use Urea, but the Ford 6.7L and new Duramax do.... so it should (should is the key word) increase their fuel economy as well. Excellent!
I have 2 '08 service trucks with the 6.7, and hope to get a couple '10s this year, so I will be able to do some comparisons as well.
lilfroger
HP is how fast u hit the wall ... TQ is how far u
The Cummins 6.7's in the 2010 / 2011 models do not have Urea on them ... Even on the Cab / Chassis. Still EGR / DPF. Cummins is working on Urea but not in the ISX line used by Dodge. I'm sure it is coming but not in the next few years.
The reason Urea shows an improvement in mileage is because the DPF doesn't have to go into active re-gen. If driven properly (read: if you load the piss out of the rig and don't do stop light to stop light only driving) active re-gen is not needed to keep the DPF at proper flow levels.
Now the thing to remember is that Urea will never be a replacement for the DPF. The dpf is to keep large particle soot low. The Urea breaks down the NOx into nitrogen and water. NOx is the one area on an epa where diesels are worse that gassers. It is our one failing grace.
The reason Urea shows an improvement in mileage is because the DPF doesn't have to go into active re-gen. If driven properly (read: if you load the piss out of the rig and don't do stop light to stop light only driving) active re-gen is not needed to keep the DPF at proper flow levels.
Now the thing to remember is that Urea will never be a replacement for the DPF. The dpf is to keep large particle soot low. The Urea breaks down the NOx into nitrogen and water. NOx is the one area on an epa where diesels are worse that gassers. It is our one failing grace.
Urea doesn't cost much, I will get you guys some pricing and average consumption.
Don't be afraid of this stuff, it has been in use for years in Europe.
Remember, they were able to reduce EGR flow into the cylinder with this, and that is a GREAT thing. '07 EPA engine EGR levels were rediculous, and the heavy duty engines were plagued with EGR valve and cooler issues.
We are excited in the heavy duty market
I`m not to worried about the cost, as i`m not buyin`, but my biggest concern is temperatures that the urea functions in, and overall repair costs of the "system" over time.
just another "hassle".
time will tell....
merlin5577
Work harder, others on welfare depend on you!
lilfroger
HP is how fast u hit the wall ... TQ is how far u
OK I need to correct myself here. 2010.5 Cab & Chassis trucks will have an 8 gal urea tank now.
At 2 gals left in the tank a 'low fluid message' will be displayed. At one gal a 'fill now or truck will stop' message will come up.
6.7 CTD Rams will see it added some time between 2013 & 2015.
