Q:Are engine operating temperatures higher with MaxxForce Advanced EGR?
A: Not at all. Cooling capacity has been sized to keep operating temperatures at optimum levels, just like customers are used to. Cooling loads have increased over the years with power increases, air-conditioning, and stringent emissions regulations. Cooling capacity has always kept pace and will continue to do so.
Q:How will it affect my operating costs?
A: With Advanced EGR, you don't have to add costs for buying, handling and maintaining liquid urea, or training drivers and technicians on how to handle liquid urea.
Q:How will MaxxForce Advanced EGR affect my bottom line?
A: Advanced EGR's takes the operational responsibility of compliance off of you. All you have to do to be compliant is turn the key and drive. Bottom line, Advanced EGR will be less of a hassle for you, your drivers and maintenance technicians.
Q:What do you mean by "no-hassle"?
A: When it came to choosing a technology for meeting the 2010 EPA emissions requirements, we made our decision with our no hassle philosophy in mind. For us that meant choosing a technology that doesn't add operational costs for customers by requiring the operator to maintain liquid urea to keep the engine in compliance so it's smarter for your business. It also meant choosing an option that doesn't create operational changes for customers making it easier on you. And, of course, a technology that meets the EPA regulations so it's cleaner than any engine we've ever built.
Q:What does EGR mean?
A: EGR stands for Exhaust Gas Recirculation. In a nutshell, cooled diesel exhaust is recirculated back into the engine, reducing emissions in cylinder before it comes out of the tailpipe.
Q:What is MaxxForce Advanced EGR?
A: MaxxForce Advanced EGR is Navistar's no-hassle solution to 2010 emissions standards, based upon four key technologies built into every MaxxForce engine we make: Advanced Exhaust Gas Recirulation, advanced fuel injection & air management, proprietary combustion bowl design and advanced electronic calibrations.
Q:What type of testing did Navistar implement for MaxxForce Advanced EGR? Did Navistar put any test vehicles in customers' hands??
A: We tested more than 60 engineering test vehicles with 2010-compliant engines logging over 10 million miles of driving in real-world conditions. Since MaxxForce Advanced EGR did not require significant changes to vehicle hardware and testing mainly involved engine calibration refinements, we believe the benefit of road testing by our own engineering team outweighed the learning obtained from customer field test units. We certainly understand the need for other manufacturers to have customer field-tests based on the dramatic changes required in their vehicle technology to meet 2010 regulations. The significant redesign of their engines and the extensive aftertreatment equipment needed for their liquid urea SCR systems likely requires these manufacturers to exert much more effort in validation.
Q:Why is Navistar the only OEM offering an in-cylinder solution?
A: We pursued Advanced EGR because when it comes to our customers, we have a philosophy to deliver them a vehicle that is no hassle. When we looked at emissions from a customer standpoint, Advanced EGR was the only no hassle option. We developed a high-pressure fuel injection system years ago, knowing that this technology would allow us to deliver a superior emissions solution.
Q:Will it affect engine reliability and durability?
A: No. While other OEMs had to work to re-engineer their engines to include liquid urea SCR technology, Navistar didn't. In fact, the MaxxForce Advanced EGR is based upon the technology solution we brought to market in 2007. This approach means customers do not have to rely on unproven technology.