1 November 2007
International Truck and Engine Corporation, a Navistar company, announced that MaxxForce™ brand diesel engines will meet the US EPA 2010 emission standards for all its core applications without the use of selective catalytic reduction (SCR) systems.
“While SCR is a means to achieve the NOx reduction requirement for 2010, it comes with a steep cost to our customers,” said Daniel C. Ustian, Navistar chairman, president and chief executive officer. “Our ability to achieve our goals without adding customer cost and inconvenience is a competitive advantage for International.”
Instead of SCR, International intends to address 2010 emissions requirements through advanced fuel system, air management, combustion and electronic controls, with no incremental NOx aftertreatment beyond the current technology. All MaxxForce on-highway diesel engines used in International’s core applications will be fully certified to the EPA 2010 emission standards, said International.
A similar non-SCR approach has been announced by Cummins, while Detroit Diesel and Volvo heavy-duty engines are believed to use urea-SCR technology in 2010. Caterpillar has not yet announced its 2010 technology.
International MaxxForce engines are used in on-highway Class 4 to Class 8 commercial trucks. In North America, the MaxxForce product line ranges from a 4.5-liter V6 to two new MaxxForce big-bore Class 8 engines that will launch in early 2008.