NCWayne, I think you need to do a little more research before you post inaccurate details although you put a disclaimer at the end of your post.
There are two different technologies that you just mentioned. Diesel Particulate Filters with Cooled Exhaust Gas Recirculation (DPF w/ CEGR) and Selective Catalytic Reductiion (SCR). These are very different systems.
You statement that Diesel Exhaust Fluid (DEF) will give problems in extreme cold temps is not true. The tanks on the vehicles are built for expansion and have a heating mechanism built in to thaw the tank out. The way to think about SCR is this, it is basically a Tier 2 engine, with an exhaust after treatment system. The engine is allowed to perform at its peak. (Tier 2 engines were more fuel efficient thant Tier 3) DEF is added after the fact. Nothing is added to the engine, just the exhaust.
Particulate filters would apply to the DPF w/CEGR systems (current Dodge pickups [not cab chassis] and Tier IV John Deere.) These units inject diesel into the filter to burn off particulate matter (regen cycle). These units also pump exhaust gas back into the engine. So, burn of particulates with fuel (more heat) and put exhaust gas back into the engine (more heat). When the DPF becomes plugged (this will happen) you have a serious issue.
SCR is where you will see everything end up where it is feasible to add a catalyst tank for the chemical reaction to occur. On smaller units, you will see DPF systems, but it is based on the number of hours and the total room for putting the emissions package on the unit.
We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]
Today's Featured Article - Usin Your Implements: Bucket Loader - by Curtis Von Fange. Introduction: Dad was raised during the depression years of the thirties. As a kid he worked part time on a farm in Kansas doing many of the manual chores. Some of the more successful farmers of that day had a new time saving device called a tractor. It increased the farm productivity and, in general, made life easier because more work could be done with this 'mechanical beast'. My dad dreamed that some day he would have his own tractor with every implement he could get. When he rea
... [Read Article]
Latest Ad:
For sale Farmall super A tractor is complete and has just been setting for awhile,it was running when pulled out of the barn,shouldn’t take to much to get it going asking 1100.00
[More Ads]
All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy
TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.
