2013 def??
#16
While I have MY non DEF truck others may not be as lucky. I just read that the lowest freeze point of DEF is -11degC /12deg F and has a shelf life from 6 months to 2 years depending on storage temp. Here is an interesting Q and A from Cummins. Wroth the read I though. http://www.fleetguard.com/pdfs/produ...es/MB10033.pdf
#17
Registered User
Thread Starter
How do you refill your system when it's near empty and the supply you took with you is frozen?
#18
Ummm plan ahead, you get a lot of miles out of a tank, like 7000+ from what I have heard. I know on tractors you could get like weeks out of the tank if I remember correctly. If I remember correctly it doesn't freeze at straight 32 degrees. Its a bit lower, I could be wrong about this.
#19
Registered User
Thread Starter
Ummm plan ahead, you get a lot of miles out of a tank, like 7000+ from what I have heard. I know on tractors you could get like weeks out of the tank if I remember correctly. If I remember correctly it doesn't freeze at straight 32 degrees. Its a bit lower, I could be wrong about this.
#20
Administrator / Severe Concussion Aficionado
If the DEF system does away with the EGR system then it will be an improvement. But the way I understand it, and I may be wrong, is that DEF is an exhaust aftertreatment. Which means that it would simply replace the diesel 4th (or 5th) injection event that is used to reduce the diesel particulates currently.
If that IS the case, and the EGR system remains, then you still have a diesel with the blacklung.
If that IS the case, and the EGR system remains, then you still have a diesel with the blacklung.
#21
Registered User
Interesting reading about SCR technology. http://www.deere.com/en_US/rg/emissi.../ag/index.html
The article pertains to agriculture equipment that is also being forced to meet strict government air quality regulations.
The article pertains to agriculture equipment that is also being forced to meet strict government air quality regulations.
#22
If the DEF system does away with the EGR system then it will be an improvement. But the way I understand it, and I may be wrong, is that DEF is an exhaust aftertreatment. Which means that it would simply replace the diesel 4th (or 5th) injection event that is used to reduce the diesel particulates currently.
If that IS the case, and the EGR system remains, then you still have a diesel with the blacklung.
If that IS the case, and the EGR system remains, then you still have a diesel with the blacklung.
#23
Registered User
Ultimately cooled EGR in combination with SCR technology may be required to meet EPA emissions requirements. As I read the attached PDF (more than you ever want to know about emissions) adding SCR to cooled EGR may be required to meet Nox emissions limits at some point. It's not clear if the cooled EGR along with SCR will be required in this next go round of phased controls.
http://www.bowmannz.com/yahoo_site_a....105104828.pdf
http://www.bowmannz.com/yahoo_site_a....105104828.pdf
#24
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Join Date: Apr 2006
Location: Beaumont Alberta Canada
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Pffft... This is good news. Soon we'll have something new to delete, I'd even bet H&S is already working on a kit and Smarty should have something ready by 2015
#25
Administrator / Severe Concussion Aficionado
Well that is what I meant. It replaces the regen injection event with a separate function, the application of DEF by a completely different and seperate system. However, this may or may not retain the EGR function. The EGR function is the true killer of the engine, not the DPF.
#29
Registered User
I was speaking with a friend yesterday, he's an avid car/truck guy, he was telling me that the 2013 Ram pickup had been spotted in camouflage, one thing that stood out was the "larger" fuel fill door, meaning they must be thinking about it. I did a little digging and found this link that shows the urea tank. http://news.pickuptrucks.com/2011/07...y-pickups.html
If the 6.7L Cummins diesel engine meet the 2010 emission rules in Jan of 2008, without the use of DEF. Then why would they start using DEF in 2013?
I use to work in the heavy equipment manufacturing business and worked with the entire Tier I through Tier IV Bin 5 requirements for diesel engine emissions. So I revisited the EPA web site to see what has changed that would require Cummins to start using DEF and per the EPA site; Tier IV Bin 5 was the final rule for emission compliance. Which the 6.7L diesel engine manufactured by Cummins met in Jan 2008, for the Tier IV Bin 5 requirements of 2010 without the use of DEF.
Here is the Link that I used.
http://www.epa.gov/otaq/highway-diesel/basicinfo.htm
Jim W.
#30
Registered User
Thread Starter
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