Source: Mack Trucks, Inc., Greensboro, N.C.
The U.S. Environmental Protection Agency and California Air Resources Board have certified Mack's MP7 and MP8 engines as meeting near-zero emissions standards effective January 2010. The first heavy-duty truck manufacturer to log certification from both agencies, Mack credits the enginesÌ compliance and low nitrogen oxides emissions to the use of selective catalytic reduction. It enabled engineers to retune the EPA Ì07-compliant MP series for additional power, lower heat rejection and reduced fuel consumption--without major modifications or cooling systems.
The new engines are so clean that in some areas, the exhaust leaving our trucks will be cleaner than the air going in, notes Mack Senior Vice President Kevin Flaherty. Our EPA Ì10 engines also have significantly improved fuel economy. Using less fuel shrinks the trucksÌ carbon footprint, reduces operating costs for customers and cuts the need for imported oil.
North American fleets running the company's SCR-equipped engines have accumulated 5 million miles in more than two years of field testing. Mack premiered its 2010 exhaust system on a Granite model at the 2009 World of Concrete.