Scorpion on Urea?????
75% of Caterpillar sales now come from NON domestic sales. Overseas. Foreign countries. Other than USA. Do you think for one minute that Cat will cut another company in their most profitable business?
Lest you forget. Navistar and Ford were in the same exclusive agreements for how many years? I will just say, more than 10, but it is much more than that.
I always think of Navistar when I think of fishing. They keep the barb on the hook! Oh, and I never saw a grade 8 hook!
Final observation. Not I, but to come from Peoria, ILL with yellow blood in veins, you learn to make something in the dirt, not on concrete or tarmac.
P. S. Let me say, please no argumentum ad homenum. I am only trying to explain one position, as you take on the opposite side.
Its safe to say that with the new emission standards and how they are integrated into the truck the days of stand alone on highway engine manufacturers are about over. You either own, become owned, align yourself with a truck builder or get out of the on highway business.
Time will tell if its yellow or black under the hood.
No, I feel the same. It was not my intention to aggreviate you. I only want to learn more about what is to happen. Sometimes guys get PO'd when they feel they have not won. My intentions are not to win, as there are no winners. Only by kowing what can happen can we, as consumers, make the decision. I said I would never buy a 6.4 until this forum.
Similarly, it would behoove me to buy a UREA diesel engine. Reminds me of my pre LAMBRETTA days, when I had a CUSHMANN and had to throw mother's earth to the clutch, but that got me to HER house! She lived on a hill...
"Caterpillar Warns Off SCR Engine Technology for Trucks
Truck engine maker Caterpillar has doubts about the ability of Selective Catalytic Reduction
technology when it comes to the near-zero federal emission standards that will be required for
trucks in 2010.
Several major issues have not yet been overcome when it comes to SCR engines and those
problems will become more apparent going forward when stricter vehicle emissions come into
play over the next half-decade, said Caterpillar Power Systems Marketing Vice President James
Parker recently. Those issues to watch are:
• The system is very vulnerable to external damage which would increase owning and
operating costs,
• Urea infrastructure has to be put up to support the U.S. market,
• Regulating the required urea addition to tanks is proving a difficult hurdle,
• Costs for fuel and urea together could wipe out most of the cost benefit attributed to SCR
technology.
In particular, the European experience with SCR shows the technology is less cost-friendly than
anticipated. "One leading European truck manufacturer recently announced it will not be using
SCR technology to meet Euro V emissions regulations," noted Caterpillar. "Our research
suggests that while it is an excellent technology for stationary application, SCR may not be the
best technology for...highway trucks.""
In a nutshell, this is old information and propaganda.
Urea will add less than a 1/2 cent per mile to the operating cost of the vehicle whereas it will increase the fuel economy by 3-5% net.
Europe didn't have an infrastructure either, but they do now.
Scania said they will be using massive EGR, which was co-developed with Cummins. Cummins WAS going to use it also, but saw the light and abandoned the idea. MAN also will use massive EGR which is why Intl. is saying their system is better. EuroV emissions is no where near as strict as US10. EuroVI gets close but not quite.
OBDII will take care of urea addition. If you want your engine to run, you will keep you tank full.
If you want to learn more, try this site: www.factsaboutscr.com
Two comments: First, much like BETA and VCR, one will win. Second, I can understand how urea works, as it is simply sprayed, poured or dribbled into the muffler as a water mix. WHAT happens when the urea mix freezes.
"old information and propaganda" is, to me, still more believable than UREA. Think of it this way. In the south, east and north USA, how many fuel pumps dispense more than 15 ppm diesel fuel. And you expect them to add "urea filling stations" at fuel stops in the next 12 months? Don't hold your breath, we would miss you at FTE.
Rob, the links you refer to are also self serving, are they not?
Ford Trucks for Ford Truck Enthusiasts
MaxxForce? ? Emissions : Learning Center - MaxxForce
Who's "koolaid" do we drink
Great site! But, also, VERY, VERY, VERY self serving--International. HOWEVER, after three days of reading, my opinion would be that I choose door A, which is the EGR system if I were to buy a 2011 truck. But, a problem exists. Navistar doesn't make a FORD F-350, and I will not buy any International truck, and FORD only has the SCR technology.
So, to answer your question, I choose "Sutter Home White Zinfindel" as I never did like KOOLAID.
P. S. I always liked my V-10 in my 2001 EXCURSION--please no rocks, the industry will hear our thoughts.
I agree that the availability of DEF (urea) is looking a bit scary at this point and it probably will be a while before you actually see DEF pumps at your local filling station, but it should not be much of a issue to distribute DEF in a prepackaged form. Early on it will probably be easiest to buy from your local dealer, but it should not take too long before your avererage filling station that has a diesel pump realizes the need to carry it. As the demand increases so will the supply...
DEF does have a freeze point issue, but the EPA has been so kind
to allow manufacturers a period of non-compliance while the DEF thaws which will be done via on vehicle heating...It is definately going to be interesting to see how all this plays out...
My strategy is to position myself so I don't have to be anyones first year test pilot. We are just going to get our first 2007 emission bus this July even though we have bought a new bus each year since 2003.
I agree its going to be interesting.
You have to agree that even with the SCR technology, you still must use EGR technology in the exhaust.
origcharger:
I agree completely. I was planning on a 2011, but not now.
Point: When I had my venturi installed and the regen flash, I was talking to someone in the know, in the garage. This very large trucking company/lessor/etc. has a deal with Ford for the life of the truck or ten years, which ever comes first, with the 6.0. I do not know about the 6.4.
Myself I would tend to believe that the amount of flow would become less of a factor as far as the effects it takes on the EGR system its self as the combustion process is improved, but that does not take in account for what effect it would have on fuel economy and power. Fortunately SCR will be the primary and EGR will be the secondary, so we can only hope that the flow is reduced significantly...
No arguments from me, but as I said above SCR is the system that will take center stage and the EGR will be the one to supplement. Granted, that is scary in its own right as there is little doubt that the EPA will continue to make emissions regulations more strict and that could ultimately lead us back to 2004 where EGR flow will once again have to be increased and combustion temperatures will have to be reduced to meet emissions even with SCR. It is a vicious cycle...




