The new EPA mandates.

In 2010, the EPA is requiring new vehicles to achieve a new diesel exhaust emissions regulations limit, which is .2 NOx (g/hp-hr) down from 1.2 in 2007. This was a difficult task to achieve and we took a different path than the rest of the OEMs by choosing an advanced EGR solution. 

Advanced EGR makes sense.

Next year you'll have two choices when you purchase a vehicle: a vehicle that reduces emissions in the engine cylinder (advanced EGR), and a vehicle that reduces emissions by adding a second fuel (urea) through an after-treatment system (SCR). With the advanced EGR solution, operating and maintenance requirements don’t change for your drivers or mechanics. Compare this to the SCR solution, where changes include significant add-on after-treatment equipment, additional attention from your drivers and new maintenance and servicing requirements for your technicians. With SCR, the burden on your clear, and that’s why we believe advanced EGR just makes sense. 

It's built in to every MaxxForce Engines

EGR (Exhaust Gas Recirculation) is an emissions reduction technique used in most gasoline and diesel engines. EGR works by re-circulating a portion of an engine's exhaust back to the engine cylinders and burning off excess pollutants. 

When temperatures in the combustion chamber get too hot, oxides of nitrogen (NOx) form. When these nitrous oxides combine with hydrocarbons, they produce the ugly haze we call smog. EGR re-circulates this exhaust into the intake stream. Since the exhaust gases have already combusted, they don’t burn again. These gases displace some of the normal intake, slowing and cooling the combustions process, which reduces NOx formation. 

The challenge for 2010 is to precisely control the flow of re-circulated exhaust. MaxxForce advanced EGR engines have increased injections pressure, improved combustion and refined calibrations with that goal in mind. The result is an engine that treats NOx in-cylinder, and therefore requires no extra effort from our customers. 


Advanced EGR means less hassle

Navistar believes that there is a better way. That's why we're introducing our advanced EGR technology, built in every MaxxForce™ Engine. Why advanced EGR? Plain and simple. It only requires one fuel: diesel. So it's business as usual for the operator and maintainer. 

The Advantages:
* No second fuel to worry about
* No new hardware to add
* No new training to operate and maintain
* No new Urea storage requirements to learn
* No Additional weight due to after-treatment equipment
* No need to worry about the impact of extreme fluid temperatures

View the Advanced EGR FAQ for More Information