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EGR vs. SCR * USA - Daimler & Volvo, Responds to Navistar Contentions
The credibility or validity of the test published by Navistar cannot be judged without revelation of more details
(Video from YouTube, by ut06265 -9 April 2009)
El Monte,CAL,USA -RV Business -July 22, 2010: ... We run stringent fuel economy tests at Daimler Trucks North America (DTNA) which are both accurate and substantiated... The 440-mile test run by our competitor is not appropriate for testing modern EPA 2010-compliant trucks. Running such a short distance test tampers with the outcome by calibrating regeneration intervals to occur immediately before and immediately after the test is completed. DTNA’s BlueTec Detroit Diesel engines regenerate after thousands of miles, not hundreds of miles. The longer the test, the more realistic the results and the closer they are to what a customer would experience in real world operations. DTNA has built more than 3,000 EPA 2010-compliant Cascadias with DD15 engines and more than 2,000 full production vehicles are currently running every day in customer fleets. Numerous customers running real life tests had completely different results and they have found Freightliner to be the best solution... In order to get a truly accurate and reliable comparison between vehicles, the use of comparable products with equivalent drivetrain components is a must. We’re eagerly anticipating acquiring an EPA 2010 certified series production 12.4L MaxxForce engine in order to run our own comparison study... The company will not comment on technologies manufactured or actions taken by other companies...
* Volvo Group defends SCR at environmental workshop
(Video from YouTube, by VolvoTrucks -16 June 2010: Customers of Volvo Trucks North America share the positive experience they've had with their Volvo trucks and the new SCR technology)
El Monte,CAL,USA –Truck News (CAN) –22 July 2010: -- Representatives from Volvo Group, strongly defended the effectiveness of SCR and warned against revamping the regulations with the roll-out of EPA2010-compliant engines already well underway... Volvo raised the point that unjustifiably limiting engine torque excessively could cause safety concerns on the road or strand drivers in the middle of nowhere in adverse conditions... John Mies, vice-president, corporate communications with Mack and Volvo called out Navistar... "The fact is that a Mack or Volvo truck running at 0.2 grams (per brake hp/hr NOx) is and will continue to be much better for the environment than a Navistar truck running at 0.5 grams - and no amount of changes to the inducement strategies will change that," he said. "Let's make sure that what we do is truly in the interest of the environment and the public. And let's not penalize those who have worked with you in good faith, and reward those who are trying to manipulate the system for their own competitive advantage"... Volvo Group has already delivered more than 3,500 Volvo and Mack engines with SCR in North America and has received orders for more than 10,000...
* COMMENT on Linkedin "World of Trucks'"
By Tom Vondenhuevel (Salesman at S&S Volvo & GMC Truck. Lima,OH,USA) -22 July 2010: • I find it amusing that the only engine manufacturer who can not meet the 2010 standard would be the one to sue to try and stop those who can. Navistar is worrying about a drivers ability to somehow get around a system the actually meets the standard while their engines don't meet the standard to begin with! They have to use credits from pick up truck engine sells to offset the penalties of not meeting the standard. (... !!!)
Labels: EGR vs SCR, truckmakers news USA
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