Mack Powertrain
EPA '07
Mack meets new EPA emissions limits
Every Mack truck meets the EPA '07 requirements with two tested and proven technologies: High Efficiency Exhaust Gas Recirculation (HEGR) and a Diesel Particulate Filter (DPF). HEGR will be used to control and reduce NOx formation, while the DPF will trap PM. The end result will be significantly cleaner engines.
Mack is offering two arrangements of a catalyzed DPF - the Mack Capsule or Mack Cap DPF as well as a vertical back-of-cab (VBOC) arrangement. A noncatalyzed DPF is also available, primarily for refuse applications.
The third element of the 2007 diesel emissions reduction challenge is a new fuel formulation: ultra-low sulfur diesel fuel (ULSD). ULSD, with only 15 parts per million of sulfur, is necessary for the efficient functioning of the DPF. The new fuel will be required for use in all highway trucks in the U.S. and will be introduced in late 2006.
What are the EPA '07 requirements?
New emissions regulations for the trucking industry took effect in the U.S. in 2007. Emissions from diesel engines produced on or after January 1, 2007 were required to reduce nitrogen oxides (referred to as NOx) by 50 percent and particulate matter (PM) emissions by 90 percent. PM is also known as soot. A typical diesel-powered heavy-duty truck equipped with an engine that meets the 2007 emissions standards will emit approximately 1200 pounds less NOx and 90 pounds less PM each year than pre-2007 trucks.
These reductions are the latest in a string of increasingly strict emissions reductions the truck industry has met during the last two decades. The end result is significantly cleaner air for everyone, while still providing the efficient transportation our customers require.
Click here to view a study indicating just how clean today’s trucks are- before they get even cleaner with SCR.
