June 29, 2000

In Denver, International Truck and Engine Corporation Strongly Supports EPA Proposal to Reduce Sulfur Content of Diesel Fuel

DENVER, June 29 -- International Truck and Engine Corporation today endorsed the Environmental Protection Agency's proposal to cut the sulfur content of diesel fuel, calling it "a prerequisite toward meeting the challenging new emissions standards beginning in 2007."

Brian Whalen, International vice president for public affairs, testified in support of the proposed new standards at an EPA hearing in Denver, the company's fifth such hearing within two weeks.

Whalen cited the role of ultra-clean-diesel fuel -- less than 15 parts per million of sulfur content -- in addressing both particulate emissions (PM) and emissions of oxides of nitrogen (NOx).

"Progressive oil companies already are making 15 ppm diesel fuel commercially available," Whalen noted. "With this ultra-clean fuel available so soon, International will commercialize its 'green diesel' engine technology next year, and thus achieve EPA's proposed MY 2007 hydrocarbon and PM emissions standards six years ahead of schedule."

On May 16, International announced in Los Angeles that in summer 2001, the company will introduce a production school bus that will be equipped with International® Green Diesel Technology, utilizing a catalyzed particulate filter, and fueled with ultra-low-sulfur fuel.

"International is investing hundreds of millions of dollars in the development of new technologies for all the markets where our engines are sold," Whalen said. The company's technological breakthroughs, he said, will allow it to achieve "unparalleled emissions reductions."

International Green Diesel Technology was first introduced in June 1999, with demonstrations that showed particulate emissions 50 percent lower than the best compressed natural gas engine. Hydrocarbons were reduced below measurable levels, eliminating the odor often associated with diesel engines. Overall, the technology reduced particulate emissions by more than 90 percent.

International Green Diesel Technology is based on a history of innovations. In 1989, International demonstrated its smokeless diesel technology, five years ahead of the EPA's mandated deadline. In 1994, International introduced its low-pressure common rail fuel-delivery system, which provides a virtually smokeless exhaust, again setting an industry benchmark for emissions technology.

The need for ultra-low-sulfur fuel is similar to what occurred when lead was forced out of gasoline because it was damaging the expensive anti-smog catalytic converters that auto companies were required to install on new cars. The removal of lead from gasoline began in 1975 and the phase-out was completed by 1986.

International Truck and Engine Corporation is the operating company of Chicago-based Navistar International Corporation (NYSE: NAV), which had 1999 sales and revenues of $8.6 billion. International Truck and Engine is a leading producer of medium trucks, school buses, heavy trucks, severe service vehicles, mid-range diesel engines and parts and services sold under the International® brand. The company also is a private label designer and manufacturer of diesel engines for the pickup truck, van and SUV markets. Through its finance subsidiary, the company also provides financing and liability insurance for its dealers and customers. Additional information can be found on the company's web site at www.InternationalDelivers.com .

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