Conversation was ebbing a bit so I'll toss this out.
Yes, the survey was done in "conjunction with Navistar";


Study Reveals Commercial Truckers Prefer EGR Over SCR for Diesel Engines

February 23, 2009, 6:28 am
Filed under: Uncategorized | Tags: 2010 Emissions
PRINCETON, N.J. – Heavy- and medium-duty commercial truckers knowledgeable on the upcoming 2010 EPA diesel emissions changes would mostly rather have exhaust gas recirculation technology in new diesel engines than selective catalytic reduction technology, according to an online survey conducted by Braun Research. Quantitatively, 51 percent of respondents chose EGR technology over SCR technology, while 24 percent chose SCR over EGR. The remaining 25 percent presumably had no strong siding for either position.
<!-- Template Id = 1 Template Name = Banner Creative (Flash) --><!-- Copyright 2002 DoubleClick Inc., All rights reserved. -->The survey also gauged the level of concern regarding upcoming emissions changes. When queried, more than half of survey respondents cited being “very” to “extremely” concerned. Particular areas of concern regarding the changes included: the higher prices of engines, engine reliability, additional maintenance costs, time needed to convert engines to updated standards, changes in maintenance requirements, and increased engine weight.
The survey was conducted by Braun Research in conjunction with Navistar, and included 302 respondents who have purchasing authority or influence the purchasing of heavy- and medium-duty commercial trucks.
Article from Work Truck Online

 

I'll pull whatever emissions crap off of whatever I drive to get my mileage back up so cheap, reliable, and easy to bypass emissions equipment are my top concerns. The new 6.4 is a monster with the exhaust straight piped and a programmer. BIG fuel economy gains as well are found with no dpf. Of course I only drive mine "off-road" or on a "closed course"... yeah right.

 

From the info I have been able to gather, I believe if the guys that answered the questions actually knew what the differences were between egr and scr, they may have answered differently.

Are the new engines going to have both or is it one or the other? EGR systems have been around for a long time along with the problems the egr system causes. If new engines have just one system, I would say the scr system would be better in the long run. Engines can be made to have power and efficient. Treat the exhaust, not the engine.

 

"Heavy- and medium-duty commercial truckers knowledgeable on the upcoming 2010 EPA diesel emissions changes would mostly rather have exhaust gas recirculation technology in new diesel engines than selective catalytic reduction technology,"


We can only guess what "knowledgeable" means in this case.


Engines with SCR systems will still have EGR.

 

I wonder what the vote would have been had there been a third question?
3. With the present economic situation do you think the 2010 emissions regulations should be scrapped or at least posponed for ten years?

 

postoned till the ecomony is better gets my vote. Those with the SCR will still have EGR and DPF, just fewer regens and less EGR.

So fill it up at one pump then fill it up at the next pump.

 

I wonder how long it will be before we read a thread that says oops, I/she/they put urea in the diesel tank or I/she/they put diesel in the urea tank.

 

I will be amazed into speechlessness if it takes longer than a week.

(still firmly believeing SCR will blow up in America's face...)

-blaine

 

It will be impossible to put diesel in the urea tank due to a smaller size filler hole. This was done on purpose. It isn't impossible to contaminate your diesel tanks with urea however.

 

The one question that remains to be answered. If this survey is at all accurate, especially for the reasons stated, why isn't there a large pre-buy occurring like there was in 2006?

 

For what reasons, if I may ask?

 

Well, while we're talking emissions, what do you think about this. Posted it in the 6.7 forum also. Granted, it's not Ford's system but the technology is undoubtedly going to trickle to all of the Big Three in some form or fashion:

Chrysler Diesel Exhaust Fluid System Previews NOx Reduction Solutions for 2010 - PickupTrucks.com News

 

There are few pre-buys because no one has enough money to buy anything they do not need immediately. Lots of pre-buys the last cycle because credit was easy.

 

The emissions "stuff" for medium and heavy diesels is sort of like a tax on individuals and businesses that make the country run - the emissions equipment adds tens of thousands of dollars to the total cost of ownership of a heavy truck that the owner has no direct benefit from.

Sure, protecting the environment is in everyone's interest, but do you see a government mandated deposit on the hazardous battery packs in consumer hybrid vehicles to ensure that they're properly disposed of when no longer usable? Do you see an effort to reduce the average consumer's energy usage in any similarly inconvenient way (outlaw air conditioning above the Mason Dixon line, that sort of thing?)?

You don't see these things because it's politically easier to hit industrial polluters than average Joes and diesels are a ripe target due to their high particulate emissions.

My worry is what will happen when this tomfoolery reaches off highway equipment even agricultural machinery, which is operated at a paper thin margin already (and where tolerance of emissions related mechanical failures are less tolerable).

 

"There are few pre-buys because no one has enough money to buy anything they do not need immediately. Lots of pre-buys the last cycle because credit was easy."


I think he's got it.